Finding the Fourth Proportional to 8,868.32, 12,238.37 and 4,889.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,868.32 : 12,238.37 = 4,889.57 : x
2. Step 2: Convert to fraction form
   8,868.32/12,238.37 = 4,889.57/x
3. Step 3: Cross multiply
   8,868.32x = 12,238.37 × 4,889.57
4. Step 4: Simplify right side
   8,868.32x = 59,840,366.80
5. Step 5: Solve for x
   x = 59,840,366.80/8,868.32
6. Step 6: Final answer
   x = 6,747.66