Finding the Fourth Proportional to 9,140.40, 12,613.83 and 5,363.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,140.40 : 12,613.83 = 5,363.62 : x
2. Step 2: Convert to fraction form
   9,140.40/12,613.83 = 5,363.62/x
3. Step 3: Cross multiply
   9,140.40x = 12,613.83 × 5,363.62
4. Step 4: Simplify right side
   9,140.40x = 67,655,790.86
5. Step 5: Solve for x
   x = 67,655,790.86/9,140.40
6. Step 6: Final answer
   x = 7,401.84