Finding the Fourth Proportional to 16,499.55, 22,747.96 and 10,520.85

Step by Step Solution

1. Step 1: Write the proportion equation
   16,499.55 : 22,747.96 = 10,520.85 : x
2. Step 2: Convert to fraction form
   16,499.55/22,747.96 = 10,520.85/x
3. Step 3: Cross multiply
   16,499.55x = 22,747.96 × 10,520.85
4. Step 4: Simplify right side
   16,499.55x = 239,327,874.97
5. Step 5: Solve for x
   x = 239,327,874.97/16,499.55
6. Step 6: Final answer
   x = 14,505.12