The JAC MOTORS company wants to sell its JS-3 model car for a cash value of $23,000. A client, who wants the car, offers to make semiannual payments with a rate of 11.5% with semiannual capitalization, the first at the end of the first semester and the last payment at the end of four and a half years, and one year later he will pay the sum of $5000. . If the company accepts these conditions, calculate the value of the semiannual fee.