You want to borrow $14,504. You must repay the loan in 15 years in equal monthly payments and a single $4,599 payment at the end of 15 years. Interest rate is 14% nominal per year.

What will be the loan balance immediately after the 44^th payment?

(Note that the single payment at the end of the period (aka balloon payment) is in addition to the regular payment scheduled for that period)