In order that there may be a fair relationship between the amount of liability for assessments and the power of objecting to the establishment of a proposed project, the voting rights of affected landowners on the question of establishing the project are as provided in this section. The landowner of land affected by the project has one vote for each dollar of assessment to which the land is subject or one vote for each dollar of the assessed valuation of land condemned for the project, as determined in accordance with title 57. The governing body of any county, township, or city to be assessed has one vote for each dollar of assessment against such county, township, or city. There may be only one vote for each dollar of assessment, regardless of the number of owners of a tract of land. If more than one owner of a tract of land    exists, the votes must be prorated among them in accordance with each owner’s property interest. A written power of attorney authorizes an agent to protest a project on behalf of any affected landowner or landowners.