Finding the Fourth Proportional to 21,595.78, 32,385.92 and 8,272.52

Step by Step Solution

1. Step 1: Write the proportion equation
   21,595.78 : 32,385.92 = 8,272.52 : x
2. Step 2: Convert to fraction form
   21,595.78/32,385.92 = 8,272.52/x
3. Step 3: Cross multiply
   21,595.78x = 32,385.92 × 8,272.52
4. Step 4: Simplify right side
   21,595.78x = 267,913,084.25
5. Step 5: Solve for x
   x = 267,913,084.25/21,595.78
6. Step 6: Final answer
   x = 12,405.81