Finding the Fourth Proportional to 8,728.43, 12,045.71 and 4,950.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,728.43 : 12,045.71 = 4,950.18 : x
2. Step 2: Convert to fraction form
   8,728.43/12,045.71 = 4,950.18/x
3. Step 3: Cross multiply
   8,728.43x = 12,045.71 × 4,950.18
4. Step 4: Simplify right side
   8,728.43x = 59,628,445.10
5. Step 5: Solve for x
   x = 59,628,445.10/8,728.43
6. Step 6: Final answer
   x = 6,831.52