Finding the Fourth Proportional to 8,826.20, 12,180.32 and 4,847.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,826.20 : 12,180.32 = 4,847.48 : x
2. Step 2: Convert to fraction form
   8,826.20/12,180.32 = 4,847.48/x
3. Step 3: Cross multiply
   8,826.20x = 12,180.32 × 4,847.48
4. Step 4: Simplify right side
   8,826.20x = 59,043,857.59
5. Step 5: Solve for x
   x = 59,043,857.59/8,826.20
6. Step 6: Final answer
   x = 6,689.61