Finding the Fourth Proportional to 9,142.28, 12,616.29 and 4,950.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,142.28 : 12,616.29 = 4,950.50 : x
2. Step 2: Convert to fraction form
   9,142.28/12,616.29 = 4,950.50/x
3. Step 3: Cross multiply
   9,142.28x = 12,616.29 × 4,950.50
4. Step 4: Simplify right side
   9,142.28x = 62,456,943.65
5. Step 5: Solve for x
   x = 62,456,943.65/9,142.28
6. Step 6: Final answer
   x = 6,831.66