Finding the Fourth Proportional to 133,085.10, 199,299.60 and 88,470.30

Step by Step Solution

1. Step 1: Write the proportion equation
   133,085.10 : 199,299.60 = 88,470.30 : x
2. Step 2: Convert to fraction form
   133,085.10/199,299.60 = 88,470.30/x
3. Step 3: Cross multiply
   133,085.10x = 199,299.60 × 88,470.30
4. Step 4: Simplify right side
   133,085.10x = 17,632,095,401.88
5. Step 5: Solve for x
   x = 17,632,095,401.88/133,085.10
6. Step 6: Final answer
   x = 132,487.37