Finding the Fourth Proportional to 8,868.83, 12,239.72 and 4,890.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,868.83 : 12,239.72 = 4,890.32 : x
2. Step 2: Convert to fraction form
   8,868.83/12,239.72 = 4,890.32/x
3. Step 3: Cross multiply
   8,868.83x = 12,239.72 × 4,890.32
4. Step 4: Simplify right side
   8,868.83x = 59,856,061.86
5. Step 5: Solve for x
   x = 59,856,061.86/8,868.83
6. Step 6: Final answer
   x = 6,749.04