Finding the Fourth Proportional to 8,879.86, 12,254.52 and 4,900.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,879.86 : 12,254.52 = 4,900.88 : x
2. Step 2: Convert to fraction form
   8,879.86/12,254.52 = 4,900.88/x
3. Step 3: Cross multiply
   8,879.86x = 12,254.52 × 4,900.88
4. Step 4: Simplify right side
   8,879.86x = 60,057,931.98
5. Step 5: Solve for x
   x = 60,057,931.98/8,879.86
6. Step 6: Final answer
   x = 6,763.39