Finding the Fourth Proportional to 88,915.05, 132,804.72 and 80,468.61

Step by Step Solution

1. Step 1: Write the proportion equation
   88,915.05 : 132,804.72 = 80,468.61 : x
2. Step 2: Convert to fraction form
   88,915.05/132,804.72 = 80,468.61/x
3. Step 3: Cross multiply
   88,915.05x = 132,804.72 × 80,468.61
4. Step 4: Simplify right side
   88,915.05x = 10,686,610,756.99
5. Step 5: Solve for x
   x = 10,686,610,756.99/88,915.05
6. Step 6: Final answer
   x = 120,189.00