Finding the Fourth Proportional to 9,752.40, 13,458.31 and 5,276.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,752.40 : 13,458.31 = 5,276.15 : x
2. Step 2: Convert to fraction form
   9,752.40/13,458.31 = 5,276.15/x
3. Step 3: Cross multiply
   9,752.40x = 13,458.31 × 5,276.15
4. Step 4: Simplify right side
   9,752.40x = 71,008,061.97
5. Step 5: Solve for x
   x = 71,008,061.97/9,752.40
6. Step 6: Final answer
   x = 7,281.09