Based on Canada, answer me step by step. please

Mr Jacob Johnson has net employment income of $53000 (after the deduction of $6000 in RPP contributions), business income of $17900, taxable dividends of $8,000, and pays deductible support payments to his former spouse of $16200 during the year. He also had a net rental loss of $12400. What is Mr. Johnson's Earned Income for RRSP purposes for the current year? Round to the nearest dollar. Do NOT write commas, dollar signs, or decimals in your response. Your