Finding the Fourth Proportional to 8,856.18, 12,221.61 and 4,877.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,856.18 : 12,221.61 = 4,877.32 : x
2. Step 2: Convert to fraction form
   8,856.18/12,221.61 = 4,877.32/x
3. Step 3: Cross multiply
   8,856.18x = 12,221.61 × 4,877.32
4. Step 4: Simplify right side
   8,856.18x = 59,608,718.16
5. Step 5: Solve for x
   x = 59,608,718.16/8,856.18
6. Step 6: Final answer
   x = 6,730.75