Finding the Fourth Proportional to 8,868.59, 12,238.62 and 4,889.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,868.59 : 12,238.62 = 4,889.61 : x
2. Step 2: Convert to fraction form
   8,868.59/12,238.62 = 4,889.61/x
3. Step 3: Cross multiply
   8,868.59x = 12,238.62 × 4,889.61
4. Step 4: Simplify right side
   8,868.59x = 59,842,078.74
5. Step 5: Solve for x
   x = 59,842,078.74/8,868.59
6. Step 6: Final answer
   x = 6,747.65