Finding the Fourth Proportional to 8,826.40, 12,180.33 and 4,847.47

Step by Step Solution

1. Step 1: Write the proportion equation
   8,826.40 : 12,180.33 = 4,847.47 : x
2. Step 2: Convert to fraction form
   8,826.40/12,180.33 = 4,847.47/x
3. Step 3: Cross multiply
   8,826.40x = 12,180.33 × 4,847.47
4. Step 4: Simplify right side
   8,826.40x = 59,043,784.27
5. Step 5: Solve for x
   x = 59,043,784.27/8,826.40
6. Step 6: Final answer
   x = 6,689.45