Finding the Fourth Proportional to 8,518.69, 12,781.07 and 3,254.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,518.69 : 12,781.07 = 3,254.10 : x
2. Step 2: Convert to fraction form
   8,518.69/12,781.07 = 3,254.10/x
3. Step 3: Cross multiply
   8,518.69x = 12,781.07 × 3,254.10
4. Step 4: Simplify right side
   8,518.69x = 41,590,879.89
5. Step 5: Solve for x
   x = 41,590,879.89/8,518.69
6. Step 6: Final answer
   x = 4,882.31