Finding the Fourth Proportional to 8,572.47, 12,849.89 and 3,895.73

Step by Step Solution

1. Step 1: Write the proportion equation
   8,572.47 : 12,849.89 = 3,895.73 : x
2. Step 2: Convert to fraction form
   8,572.47/12,849.89 = 3,895.73/x
3. Step 3: Cross multiply
   8,572.47x = 12,849.89 × 3,895.73
4. Step 4: Simplify right side
   8,572.47x = 50,059,714.62
5. Step 5: Solve for x
   x = 50,059,714.62/8,572.47
6. Step 6: Final answer
   x = 5,839.59