Finding the Fourth Proportional to 8,315.04, 12,411.72 and 7,330.92

Step by Step Solution

1. Step 1: Write the proportion equation
   8,315.04 : 12,411.72 = 7,330.92 : x
2. Step 2: Convert to fraction form
   8,315.04/12,411.72 = 7,330.92/x
3. Step 3: Cross multiply
   8,315.04x = 12,411.72 × 7,330.92
4. Step 4: Simplify right side
   8,315.04x = 90,989,326.38
5. Step 5: Solve for x
   x = 90,989,326.38/8,315.04
6. Step 6: Final answer
   x = 10,942.74