Answer:
Month July August September
Beginning balance 9,500 9,100 9,100
Cash receipts 25,100 33,100 41,100
Cash payments -29,650 -31,100 -33,100
balance 4,950 11,100 17,100
interests 0 -83 -143.66
loan 4,150 -1,917 -7,183
Pending balance 9,100 9,100 9,773.34