Step 1 :Define the initial net income as \$200,000 and the target net income as \$800,000.
Step 2 :Define the annual growth rate as 11\%, or 0.11.
Step 3 :Use the formula for exponential growth to calculate the number of years it will take to reach the target income. The formula is \(x = \frac{\ln(\frac{target\_income}{initial\_income})}{\ln(1 + growth\_rate)}\).
Step 4 :Substitute the given values into the formula to get \(x = \frac{\ln(\frac{800000}{200000})}{\ln(1 + 0.11)}\).
Step 5 :Solve the equation to get \(x \approx 13.3\).
Step 6 :Round the result to the nearest tenth to get \(x \approx 13.3\).
Step 7 :Final Answer: The company's net income will be \$800,000 approximately \(\boxed{13.3}\) years after 2020.