The boards of supervisors of the various counties in Mississippi which are entitled to share in the distribution of the Chickasaw school funds, are hereby authorized and empowered to make settlement with any separate school district in said counties which has received more or less than its proportionate part of said funds, and the boards of supervisors may appropriate any money now on hand or that may be allotted to said counties in the future in the payment of any amount due to such separate school districts.