Finding the Fourth Proportional to 9,321.18, 12,863.58 and 5,343.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,321.18 : 12,863.58 = 5,343.04 : x
2. Step 2: Convert to fraction form
   9,321.18/12,863.58 = 5,343.04/x
3. Step 3: Cross multiply
   9,321.18x = 12,863.58 × 5,343.04
4. Step 4: Simplify right side
   9,321.18x = 68,730,627.43
5. Step 5: Solve for x
   x = 68,730,627.43/9,321.18
6. Step 6: Final answer
   x = 7,373.60