Finding the Fourth Proportional to 8,880.86, 12,255.90 and 4,901.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,880.86 : 12,255.90 = 4,901.88 : x
2. Step 2: Convert to fraction form
   8,880.86/12,255.90 = 4,901.88/x
3. Step 3: Cross multiply
   8,880.86x = 12,255.90 × 4,901.88
4. Step 4: Simplify right side
   8,880.86x = 60,076,951.09
5. Step 5: Solve for x
   x = 60,076,951.09/8,880.86
6. Step 6: Final answer
   x = 6,764.77