Finding the Fourth Proportional to 131,007.74, 196,549.88 and 42,259.28

Step by Step Solution

1. Step 1: Write the proportion equation
   131,007.74 : 196,549.88 = 42,259.28 : x
2. Step 2: Convert to fraction form
   131,007.74/196,549.88 = 42,259.28/x
3. Step 3: Cross multiply
   131,007.74x = 196,549.88 × 42,259.28
4. Step 4: Simplify right side
   131,007.74x = 8,306,056,412.89
5. Step 5: Solve for x
   x = 8,306,056,412.89/131,007.74
6. Step 6: Final answer
   x = 63,401.26