Finding the Fourth Proportional to 5,260.72, 7,260.31 and 3,932.12

Step by Step Solution

1. Step 1: Write the proportion equation
   5,260.72 : 7,260.31 = 3,932.12 : x
2. Step 2: Convert to fraction form
   5,260.72/7,260.31 = 3,932.12/x
3. Step 3: Cross multiply
   5,260.72x = 7,260.31 × 3,932.12
4. Step 4: Simplify right side
   5,260.72x = 28,548,401.74
5. Step 5: Solve for x
   x = 28,548,401.74/5,260.72
6. Step 6: Final answer
   x = 5,426.71