Finding the Fourth Proportional to 88,519.40, 132,775.50 and 21,959.72

Step by Step Solution

1. Step 1: Write the proportion equation
   88,519.40 : 132,775.50 = 21,959.72 : x
2. Step 2: Convert to fraction form
   88,519.40/132,775.50 = 21,959.72/x
3. Step 3: Cross multiply
   88,519.40x = 132,775.50 × 21,959.72
4. Step 4: Simplify right side
   88,519.40x = 2,915,712,802.86
5. Step 5: Solve for x
   x = 2,915,712,802.86/88,519.40
6. Step 6: Final answer
   x = 32,938.69