Finding the Fourth Proportional to 16,687.98, 25,049.56 and 16,311.43

Step by Step Solution

1. Step 1: Write the proportion equation
   16,687.98 : 25,049.56 = 16,311.43 : x
2. Step 2: Convert to fraction form
   16,687.98/25,049.56 = 16,311.43/x
3. Step 3: Cross multiply
   16,687.98x = 25,049.56 × 16,311.43
4. Step 4: Simplify right side
   16,687.98x = 408,594,144.47
5. Step 5: Solve for x
   x = 408,594,144.47/16,687.98
6. Step 6: Final answer
   x = 24,484.34