Finding the Fourth Proportional to 131,240.56, 196,892.20 and 42,494.16

Step by Step Solution

1. Step 1: Write the proportion equation
   131,240.56 : 196,892.20 = 42,494.16 : x
2. Step 2: Convert to fraction form
   131,240.56/196,892.20 = 42,494.16/x
3. Step 3: Cross multiply
   131,240.56x = 196,892.20 × 42,494.16
4. Step 4: Simplify right side
   131,240.56x = 8,366,768,649.55
5. Step 5: Solve for x
   x = 8,366,768,649.55/131,240.56
6. Step 6: Final answer
   x = 63,751.39