When the report is fully completed and accepted by the clerk, a date, not less than twenty days thereafter, shall be fixed by the clerk for the final hearing upon the report and notice thereof shall be given by publication in a newspaper of general circulation in the county and by posting a written or printed notice on the door of the courthouse and at five conspicuous places throughout the district, such publication to be made for at least two weeks before the final hearing. During this time a copy of the report shall be on file in the office of the clerk of the court of common pleas and shall be open to the inspection of any landowner or other person interested within the drainage district.