Finding the Fourth Proportional to 8,875.78, 12,248.55 and 4,896.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,875.78 : 12,248.55 = 4,896.88 : x
2. Step 2: Convert to fraction form
   8,875.78/12,248.55 = 4,896.88/x
3. Step 3: Cross multiply
   8,875.78x = 12,248.55 × 4,896.88
4. Step 4: Simplify right side
   8,875.78x = 59,979,648.90
5. Step 5: Solve for x
   x = 59,979,648.90/8,875.78
6. Step 6: Final answer
   x = 6,757.68