Finding the Fourth Proportional to 9,321.48, 12,863.42 and 5,344.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,321.48 : 12,863.42 = 5,344.92 : x
2. Step 2: Convert to fraction form
   9,321.48/12,863.42 = 5,344.92/x
3. Step 3: Cross multiply
   9,321.48x = 12,863.42 × 5,344.92
4. Step 4: Simplify right side
   9,321.48x = 68,753,950.83
5. Step 5: Solve for x
   x = 68,753,950.83/9,321.48
6. Step 6: Final answer
   x = 7,375.86