Emerson developed a new style of camping trailer. He is considering a licensing agreement with Easy$-$Tow, who will manufacture the new trailer. They are proposing to pay him $$36,000$ now, an $$18,000$ at the beginning of each of the ten years of the licensing agreement, starting in two years. If interest is $7\mathrm{.}9\%$ compounded semi$-$annually, what is the agreement worth today?