Finding the Fourth Proportional to 88,250.89, 132,375.18 and 21,691.60

Step by Step Solution

1. Step 1: Write the proportion equation
   88,250.89 : 132,375.18 = 21,691.60 : x
2. Step 2: Convert to fraction form
   88,250.89/132,375.18 = 21,691.60/x
3. Step 3: Cross multiply
   88,250.89x = 132,375.18 × 21,691.60
4. Step 4: Simplify right side
   88,250.89x = 2,871,429,454.49
5. Step 5: Solve for x
   x = 2,871,429,454.49/88,250.89
6. Step 6: Final answer
   x = 32,537.12