Finding the Fourth Proportional to 8,085.62, 12,127.71 and 2,819.73

Step by Step Solution

1. Step 1: Write the proportion equation
   8,085.62 : 12,127.71 = 2,819.73 : x
2. Step 2: Convert to fraction form
   8,085.62/12,127.71 = 2,819.73/x
3. Step 3: Cross multiply
   8,085.62x = 12,127.71 × 2,819.73
4. Step 4: Simplify right side
   8,085.62x = 34,196,867.72
5. Step 5: Solve for x
   x = 34,196,867.72/8,085.62
6. Step 6: Final answer
   x = 4,229.35