Finding the Fourth Proportional to 16,086.20, 22,199.56 and 9,012.38

Step by Step Solution

1. Step 1: Write the proportion equation
   16,086.20 : 22,199.56 = 9,012.38 : x
2. Step 2: Convert to fraction form
   16,086.20/22,199.56 = 9,012.38/x
3. Step 3: Cross multiply
   16,086.20x = 22,199.56 × 9,012.38
4. Step 4: Simplify right side
   16,086.20x = 200,070,737.02
5. Step 5: Solve for x
   x = 200,070,737.02/16,086.20
6. Step 6: Final answer
   x = 12,437.42