Finding the Fourth Proportional to 88,191.72, 132,287.94 and 21,632.28

Step by Step Solution

1. Step 1: Write the proportion equation
   88,191.72 : 132,287.94 = 21,632.28 : x
2. Step 2: Convert to fraction form
   88,191.72/132,287.94 = 21,632.28/x
3. Step 3: Cross multiply
   88,191.72x = 132,287.94 × 21,632.28
4. Step 4: Simplify right side
   88,191.72x = 2,861,689,758.70
5. Step 5: Solve for x
   x = 2,861,689,758.70/88,191.72
6. Step 6: Final answer
   x = 32,448.51