Finding the Fourth Proportional to 21,535.52, 32,311.51 and 8,397.05

Step by Step Solution

1. Step 1: Write the proportion equation
   21,535.52 : 32,311.51 = 8,397.05 : x
2. Step 2: Convert to fraction form
   21,535.52/32,311.51 = 8,397.05/x
3. Step 3: Cross multiply
   21,535.52x = 32,311.51 × 8,397.05
4. Step 4: Simplify right side
   21,535.52x = 271,321,182.50
5. Step 5: Solve for x
   x = 271,321,182.50/21,535.52
6. Step 6: Final answer
   x = 12,598.78