Finding the Fourth Proportional to 8,856.32, 12,222.47 and 4,878.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,856.32 : 12,222.47 = 4,878.18 : x
2. Step 2: Convert to fraction form
   8,856.32/12,222.47 = 4,878.18/x
3. Step 3: Cross multiply
   8,856.32x = 12,222.47 × 4,878.18
4. Step 4: Simplify right side
   8,856.32x = 59,623,384.31
5. Step 5: Solve for x
   x = 59,623,384.31/8,856.32
6. Step 6: Final answer
   x = 6,732.30