Finding the Fourth Proportional to 89,150.77, 132,940.42 and 88,351.30

Step by Step Solution

1. Step 1: Write the proportion equation
   89,150.77 : 132,940.42 = 88,351.30 : x
2. Step 2: Convert to fraction form
   89,150.77/132,940.42 = 88,351.30/x
3. Step 3: Cross multiply
   89,150.77x = 132,940.42 × 88,351.30
4. Step 4: Simplify right side
   89,150.77x = 11,745,458,929.55
5. Step 5: Solve for x
   x = 11,745,458,929.55/89,150.77
6. Step 6: Final answer
   x = 131,748.26