Finding the Fourth Proportional to 131,085.42, 196,321.95 and 120,500.34

Step by Step Solution

1. Step 1: Write the proportion equation
   131,085.42 : 196,321.95 = 120,500.34 : x
2. Step 2: Convert to fraction form
   131,085.42/196,321.95 = 120,500.34/x
3. Step 3: Cross multiply
   131,085.42x = 196,321.95 × 120,500.34
4. Step 4: Simplify right side
   131,085.42x = 23,656,861,724.46
5. Step 5: Solve for x
   x = 23,656,861,724.46/131,085.42
6. Step 6: Final answer
   x = 180,469.05