Finding the Fourth Proportional to 8,771.80, 13,162.89 and 3,229.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,771.80 : 13,162.89 = 3,229.04 : x
2. Step 2: Convert to fraction form
   8,771.80/13,162.89 = 3,229.04/x
3. Step 3: Cross multiply
   8,771.80x = 13,162.89 × 3,229.04
4. Step 4: Simplify right side
   8,771.80x = 42,503,498.33
5. Step 5: Solve for x
   x = 42,503,498.33/8,771.80
6. Step 6: Final answer
   x = 4,845.47