Finding the Fourth Proportional to 131,293.92, 196,948.98 and 89,156.10

Step by Step Solution

1. Step 1: Write the proportion equation
   131,293.92 : 196,948.98 = 89,156.10 : x
2. Step 2: Convert to fraction form
   131,293.92/196,948.98 = 89,156.10/x
3. Step 3: Cross multiply
   131,293.92x = 196,948.98 × 89,156.10
4. Step 4: Simplify right side
   131,293.92x = 17,559,202,955.78
5. Step 5: Solve for x
   x = 17,559,202,955.78/131,293.92
6. Step 6: Final answer
   x = 133,739.65