Finding the Fourth Proportional to 8,753.43, 12,082.43 and 5,397.30

Step by Step Solution

1. Step 1: Write the proportion equation
   8,753.43 : 12,082.43 = 5,397.30 : x
2. Step 2: Convert to fraction form
   8,753.43/12,082.43 = 5,397.30/x
3. Step 3: Cross multiply
   8,753.43x = 12,082.43 × 5,397.30
4. Step 4: Simplify right side
   8,753.43x = 65,212,512.93
5. Step 5: Solve for x
   x = 65,212,512.93/8,753.43
6. Step 6: Final answer
   x = 7,449.94