Finding the Fourth Proportional to 16,247.20, 24,418.56 and 13,491.52

Step by Step Solution

1. Step 1: Write the proportion equation
   16,247.20 : 24,418.56 = 13,491.52 : x
2. Step 2: Convert to fraction form
   16,247.20/24,418.56 = 13,491.52/x
3. Step 3: Cross multiply
   16,247.20x = 24,418.56 × 13,491.52
4. Step 4: Simplify right side
   16,247.20x = 329,443,490.61
5. Step 5: Solve for x
   x = 329,443,490.61/16,247.20
6. Step 6: Final answer
   x = 20,276.94