Finding the Fourth Proportional to 131,320.56, 197,042.37 and 64,724.37

Step by Step Solution

1. Step 1: Write the proportion equation
   131,320.56 : 197,042.37 = 64,724.37 : x
2. Step 2: Convert to fraction form
   131,320.56/197,042.37 = 64,724.37/x
3. Step 3: Cross multiply
   131,320.56x = 197,042.37 × 64,724.37
4. Step 4: Simplify right side
   131,320.56x = 12,753,443,261.56
5. Step 5: Solve for x
   x = 12,753,443,261.56/131,320.56
6. Step 6: Final answer
   x = 97,116.88