Finding the Fourth Proportional to 21,414.41, 29,560.38 and 14,517.15

Step by Step Solution

1. Step 1: Write the proportion equation
   21,414.41 : 29,560.38 = 14,517.15 : x
2. Step 2: Convert to fraction form
   21,414.41/29,560.38 = 14,517.15/x
3. Step 3: Cross multiply
   21,414.41x = 29,560.38 × 14,517.15
4. Step 4: Simplify right side
   21,414.41x = 429,132,470.52
5. Step 5: Solve for x
   x = 429,132,470.52/21,414.41
6. Step 6: Final answer
   x = 20,039.43