Finding the Fourth Proportional to 8,857.98, 12,223.77 and 4,879.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,857.98 : 12,223.77 = 4,879.02 : x
2. Step 2: Convert to fraction form
   8,857.98/12,223.77 = 4,879.02/x
3. Step 3: Cross multiply
   8,857.98x = 12,223.77 × 4,879.02
4. Step 4: Simplify right side
   8,857.98x = 59,640,018.31
5. Step 5: Solve for x
   x = 59,640,018.31/8,857.98
6. Step 6: Final answer
   x = 6,732.91