Finding the Fourth Proportional to 9,140.55, 12,614.19 and 5,605.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,140.55 : 12,614.19 = 5,605.71 : x
2. Step 2: Convert to fraction form
   9,140.55/12,614.19 = 5,605.71/x
3. Step 3: Cross multiply
   9,140.55x = 12,614.19 × 5,605.71
4. Step 4: Simplify right side
   9,140.55x = 70,711,399.93
5. Step 5: Solve for x
   x = 70,711,399.93/9,140.55
6. Step 6: Final answer
   x = 7,736.02