Finding the Fourth Proportional to 131,242.56, 196,895.20 and 42,496.16

Step by Step Solution

1. Step 1: Write the proportion equation
   131,242.56 : 196,895.20 = 42,496.16 : x
2. Step 2: Convert to fraction form
   131,242.56/196,895.20 = 42,496.16/x
3. Step 3: Cross multiply
   131,242.56x = 196,895.20 × 42,496.16
4. Step 4: Simplify right side
   131,242.56x = 8,367,289,922.43
5. Step 5: Solve for x
   x = 8,367,289,922.43/131,242.56
6. Step 6: Final answer
   x = 63,754.39