Finding the Fourth Proportional to 8,856.89, 12,222.48 and 4,878.00

Step by Step Solution

1. Step 1: Write the proportion equation
   8,856.89 : 12,222.48 = 4,878.00 : x
2. Step 2: Convert to fraction form
   8,856.89/12,222.48 = 4,878.00/x
3. Step 3: Cross multiply
   8,856.89x = 12,222.48 × 4,878.00
4. Step 4: Simplify right side
   8,856.89x = 59,621,234.50
5. Step 5: Solve for x
   x = 59,621,234.50/8,856.89
6. Step 6: Final answer
   x = 6,731.62