Space Fuel Inc. is considering establishing a new propellant depot to provide space vehicles a refueling point in their trek to Mars. If placed in a LaGrange point, the depot could save $50,000K annually. The depot can be constructed for $200,000K today and will be used for a period of 10 years. It has a salvage value of $10,000K at the end of its useful life. The new depot will require an annual maintenance cost of $9,000K. Capital financing is available at 4.78% per semiannual period compounded monthly. Find the present worth.