Finding the Fourth Proportional to 133,025.10, 199,209.60 and 88,410.30

Step by Step Solution

1. Step 1: Write the proportion equation
   133,025.10 : 199,209.60 = 88,410.30 : x
2. Step 2: Convert to fraction form
   133,025.10/199,209.60 = 88,410.30/x
3. Step 3: Cross multiply
   133,025.10x = 199,209.60 × 88,410.30
4. Step 4: Simplify right side
   133,025.10x = 17,612,180,498.88
5. Step 5: Solve for x
   x = 17,612,180,498.88/133,025.10
6. Step 6: Final answer
   x = 132,397.42