Finding the Fourth Proportional to 7,124.52, 9,831.76 and 4,142.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,124.52 : 9,831.76 = 4,142.10 : x
2. Step 2: Convert to fraction form
   7,124.52/9,831.76 = 4,142.10/x
3. Step 3: Cross multiply
   7,124.52x = 9,831.76 × 4,142.10
4. Step 4: Simplify right side
   7,124.52x = 40,724,133.10
5. Step 5: Solve for x
   x = 40,724,133.10/7,124.52
6. Step 6: Final answer
   x = 5,716.05