A debt of X TL; 500 TL at the end of the first year, 1,000 TL at the end of the second year, 1,500 TL at the end of the third year, ..., 5,000 TL at the end of the 10th year. Since the annual effective interest rate is 10%, calculate the amount of interest paid in the fourth installment payment.

I need solutions step by step with formula.