Finding the Fourth Proportional to 8,878.72, 12,252.46 and 4,899.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,878.72 : 12,252.46 = 4,899.60 : x
2. Step 2: Convert to fraction form
   8,878.72/12,252.46 = 4,899.60/x
3. Step 3: Cross multiply
   8,878.72x = 12,252.46 × 4,899.60
4. Step 4: Simplify right side
   8,878.72x = 60,032,153.02
5. Step 5: Solve for x
   x = 60,032,153.02/8,878.72
6. Step 6: Final answer
   x = 6,761.35