Finding the Fourth Proportional to 8,857.52, 12,222.56 and 4,878.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,857.52 : 12,222.56 = 4,878.80 : x
2. Step 2: Convert to fraction form
   8,857.52/12,222.56 = 4,878.80/x
3. Step 3: Cross multiply
   8,857.52x = 12,222.56 × 4,878.80
4. Step 4: Simplify right side
   8,857.52x = 59,631,425.73
5. Step 5: Solve for x
   x = 59,631,425.73/8,857.52
6. Step 6: Final answer
   x = 6,732.29