Finding the Fourth Proportional to 8,456.72, 12,681.86 and 2,833.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,456.72 : 12,681.86 = 2,833.25 : x
2. Step 2: Convert to fraction form
   8,456.72/12,681.86 = 2,833.25/x
3. Step 3: Cross multiply
   8,456.72x = 12,681.86 × 2,833.25
4. Step 4: Simplify right side
   8,456.72x = 35,930,802.27
5. Step 5: Solve for x
   x = 35,930,802.27/8,456.72
6. Step 6: Final answer
   x = 4,248.79