Finding the Fourth Proportional to 131,240.81, 196,892.58 and 42,494.42

Step by Step Solution

1. Step 1: Write the proportion equation
   131,240.81 : 196,892.58 = 42,494.42 : x
2. Step 2: Convert to fraction form
   131,240.81/196,892.58 = 42,494.42/x
3. Step 3: Cross multiply
   131,240.81x = 196,892.58 × 42,494.42
4. Step 4: Simplify right side
   131,240.81x = 8,366,834,792.47
5. Step 5: Solve for x
   x = 8,366,834,792.47/131,240.81
6. Step 6: Final answer
   x = 63,751.78