A printing press was purchased 4 years ago for $100,000. The current market value is $45,000, which will decline as follows over the next 5 years: $40,000, $33,500, $28,000, $24,000, and $17,000. The O & M costs are estimated to be $16,000 this year. These costs are expected to increase by $5000 per year starting year 2. MARR = 10% .

What is the foregone interest in year 4?