Finding the Fourth Proportional to 9,275.31, 12,798.32 and 5,295.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,275.31 : 12,798.32 = 5,295.15 : x
2. Step 2: Convert to fraction form
   9,275.31/12,798.32 = 5,295.15/x
3. Step 3: Cross multiply
   9,275.31x = 12,798.32 × 5,295.15
4. Step 4: Simplify right side
   9,275.31x = 67,768,997.67
5. Step 5: Solve for x
   x = 67,768,997.67/9,275.31
6. Step 6: Final answer
   x = 7,306.39