If the total eligible amounts claimed for reimbursement, as approved by the committee and the department, exceed the appropriation therefor, each district would be reimbursed a pro rata amount equivalent to the percentage arrived at by dividing the appropriation by the total eligible reimbursement. For example, if there is a total of $120,000 eligible reimbursement expenditures from districts, and the appropriation is $80,000, each district would receive two thirds of the amount it would be otherwise eligible for.