Finding the Fourth Proportional to 16,447.05, 24,641.82 and 13,691.43

Step by Step Solution

1. Step 1: Write the proportion equation
   16,447.05 : 24,641.82 = 13,691.43 : x
2. Step 2: Convert to fraction form
   16,447.05/24,641.82 = 13,691.43/x
3. Step 3: Cross multiply
   16,447.05x = 24,641.82 × 13,691.43
4. Step 4: Simplify right side
   16,447.05x = 337,381,753.60
5. Step 5: Solve for x
   x = 337,381,753.60/16,447.05
6. Step 6: Final answer
   x = 20,513.21