At the time of the hearing provided for in the next preceding section, it shall be the duty of the board of county commissioners first to ascertain and determine whether the required notice has been published, and if so, to hear all persons in favor or opposed to granting the prayer of the petition and all evidence with respect to whether or not such petition contains the proper number of signers prescribed by this act and whether the statements in said petition are true; and if upon such hearing it shall be found and determined that such petition is sufficient under the requirements of this act and that the granting of such petition has been recommended by the governing body of an incorporated city when such recommendation is required under the provisions of Kan. Stat. Ann. § 19-3801, then such board of county commissioners may make a finding and decision approving the application, and if such application is approved, shall thereupon immediately declare the territory described in the petition to constitute a corporation and to be incorporated as an industrial district under the name of “The __________ industrial district of __________ county, Kansas” (inserting the name designated in the petition and the name of the proper county) and thenceforth the said territory and the owners and lessees of the property therein shall constitute a body politic and corporate and be a corporation under said name, and shall have perpetual succession. The five persons named in the petition shall be officially designated by the board of county commissioners as the first board of directors of such industrial district.