Finding the Fourth Proportional to 9,142.43, 12,616.61 and 5,604.95

Step by Step Solution

1. Step 1: Write the proportion equation
   9,142.43 : 12,616.61 = 5,604.95 : x
2. Step 2: Convert to fraction form
   9,142.43/12,616.61 = 5,604.95/x
3. Step 3: Cross multiply
   9,142.43x = 12,616.61 × 5,604.95
4. Step 4: Simplify right side
   9,142.43x = 70,715,471.74
5. Step 5: Solve for x
   x = 70,715,471.74/9,142.43
6. Step 6: Final answer
   x = 7,734.87