Finding the Fourth Proportional to 8,856.86, 12,223.20 and 4,878.71

Step by Step Solution

1. Step 1: Write the proportion equation
   8,856.86 : 12,223.20 = 4,878.71 : x
2. Step 2: Convert to fraction form
   8,856.86/12,223.20 = 4,878.71/x
3. Step 3: Cross multiply
   8,856.86x = 12,223.20 × 4,878.71
4. Step 4: Simplify right side
   8,856.86x = 59,633,454.24
5. Step 5: Solve for x
   x = 59,633,454.24/8,856.86
6. Step 6: Final answer
   x = 6,733.03