Finding the Fourth Proportional to 131,226.72, 196,744.72 and 52,317.28

Step by Step Solution

1. Step 1: Write the proportion equation
   131,226.72 : 196,744.72 = 52,317.28 : x
2. Step 2: Convert to fraction form
   131,226.72/196,744.72 = 52,317.28/x
3. Step 3: Cross multiply
   131,226.72x = 196,744.72 × 52,317.28
4. Step 4: Simplify right side
   131,226.72x = 10,293,148,604.76
5. Step 5: Solve for x
   x = 10,293,148,604.76/131,226.72
6. Step 6: Final answer
   x = 78,437.90