Using Compound Interest Tables and Interpolation Techniques

(7) A series of monthly cash flows is deposited into an account that earns 12% nominal interest compounded monthly. Each monthly deposit is equal to $2,100. The first monthly deposit occurred on July 1, 2018 and the last monthly deposit will be on February 1, 2025. The account (the series of monthly deposits, 12% nominal interest, and monthly compounding) also has equivalent quarterly withdrawals from it. The first quarterly withdrawal is equal to $5,000 and occurred on November 1, 2018. The last $5,000 withdrawal will occur on February 1, 2025. How much remains in the account after the last withdrawal