Finding the Fourth Proportional to 8,879.73, 12,253.83 and 4,900.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,879.73 : 12,253.83 = 4,900.61 : x
2. Step 2: Convert to fraction form
   8,879.73/12,253.83 = 4,900.61/x
3. Step 3: Cross multiply
   8,879.73x = 12,253.83 × 4,900.61
4. Step 4: Simplify right side
   8,879.73x = 60,051,180.57
5. Step 5: Solve for x
   x = 60,051,180.57/8,879.73
6. Step 6: Final answer
   x = 6,762.73