Finding the Fourth Proportional to 9,432.72, 13,017.56 and 5,240.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,432.72 : 13,017.56 = 5,240.88 : x
2. Step 2: Convert to fraction form
   9,432.72/13,017.56 = 5,240.88/x
3. Step 3: Cross multiply
   9,432.72x = 13,017.56 × 5,240.88
4. Step 4: Simplify right side
   9,432.72x = 68,223,469.85
5. Step 5: Solve for x
   x = 68,223,469.85/9,432.72
6. Step 6: Final answer
   x = 7,232.64