Finding the Fourth Proportional to 10,520.17, 14,517.61 and 5,740.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,520.17 : 14,517.61 = 5,740.12 : x
2. Step 2: Convert to fraction form
   10,520.17/14,517.61 = 5,740.12/x
3. Step 3: Cross multiply
   10,520.17x = 14,517.61 × 5,740.12
4. Step 4: Simplify right side
   10,520.17x = 83,332,823.51
5. Step 5: Solve for x
   x = 83,332,823.51/10,520.17
6. Step 6: Final answer
   x = 7,921.24