Finding the Fourth Proportional to 8,856.16, 12,221.61 and 4,877.26

Step by Step Solution

1. Step 1: Write the proportion equation
   8,856.16 : 12,221.61 = 4,877.26 : x
2. Step 2: Convert to fraction form
   8,856.16/12,221.61 = 4,877.26/x
3. Step 3: Cross multiply
   8,856.16x = 12,221.61 × 4,877.26
4. Step 4: Simplify right side
   8,856.16x = 59,607,969.59
5. Step 5: Solve for x
   x = 59,607,969.59/8,856.16
6. Step 6: Final answer
   x = 6,730.68