Finding the Fourth Proportional to 21,597.48, 32,404.32 and 8,458.92

Step by Step Solution

1. Step 1: Write the proportion equation
   21,597.48 : 32,404.32 = 8,458.92 : x
2. Step 2: Convert to fraction form
   21,597.48/32,404.32 = 8,458.92/x
3. Step 3: Cross multiply
   21,597.48x = 32,404.32 × 8,458.92
4. Step 4: Simplify right side
   21,597.48x = 274,105,550.53
5. Step 5: Solve for x
   x = 274,105,550.53/21,597.48
6. Step 6: Final answer
   x = 12,691.55