Finding the Fourth Proportional to 9,702.62, 13,391.24 and 5,724.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,702.62 : 13,391.24 = 5,724.72 : x
2. Step 2: Convert to fraction form
   9,702.62/13,391.24 = 5,724.72/x
3. Step 3: Cross multiply
   9,702.62x = 13,391.24 × 5,724.72
4. Step 4: Simplify right side
   9,702.62x = 76,661,099.45
5. Step 5: Solve for x
   x = 76,661,099.45/9,702.62
6. Step 6: Final answer
   x = 7,901.07