ASAP please?

Maxipeel co. is deciding to "purchase or lease" an automatic mixing equipment that will cost 35000, to be depreciated straight-line basis over a 4-year penod useful life. tax=30% if owned, annual maintenance & insurance expenses = 2500. hans co. wacc = 18% if leased, lease payment = 11,923.17 at the start of each year reguired:

a). COST OF LEASING:

The correct answer is $26,493.18

Can you please show me the computation how to get like this? ( excel and formula)