Finding the Fourth Proportional to 88,189.72, 132,284.94 and 21,630.28

Step by Step Solution

1. Step 1: Write the proportion equation
   88,189.72 : 132,284.94 = 21,630.28 : x
2. Step 2: Convert to fraction form
   88,189.72/132,284.94 = 21,630.28/x
3. Step 3: Cross multiply
   88,189.72x = 132,284.94 × 21,630.28
4. Step 4: Simplify right side
   88,189.72x = 2,861,360,291.98
5. Step 5: Solve for x
   x = 2,861,360,291.98/88,189.72
6. Step 6: Final answer
   x = 32,445.51