Finding the Fourth Proportional to 131,157.72, 196,747.38 and 42,425.46

Step by Step Solution

1. Step 1: Write the proportion equation
   131,157.72 : 196,747.38 = 42,425.46 : x
2. Step 2: Convert to fraction form
   131,157.72/196,747.38 = 42,425.46/x
3. Step 3: Cross multiply
   131,157.72x = 196,747.38 × 42,425.46
4. Step 4: Simplify right side
   131,157.72x = 8,347,098,100.29
5. Step 5: Solve for x
   x = 8,347,098,100.29/131,157.72
6. Step 6: Final answer
   x = 63,641.68