Finding the Fourth Proportional to 88,215.52, 132,321.12 and 21,655.12

Step by Step Solution

1. Step 1: Write the proportion equation
   88,215.52 : 132,321.12 = 21,655.12 : x
2. Step 2: Convert to fraction form
   88,215.52/132,321.12 = 21,655.12/x
3. Step 3: Cross multiply
   88,215.52x = 132,321.12 × 21,655.12
4. Step 4: Simplify right side
   88,215.52x = 2,865,429,732.13
5. Step 5: Solve for x
   x = 2,865,429,732.13/88,215.52
6. Step 6: Final answer
   x = 32,482.15