Finding the Fourth Proportional to 8,514.50, 12,774.18 and 3,581.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,514.50 : 12,774.18 = 3,581.60 : x
2. Step 2: Convert to fraction form
   8,514.50/12,774.18 = 3,581.60/x
3. Step 3: Cross multiply
   8,514.50x = 12,774.18 × 3,581.60
4. Step 4: Simplify right side
   8,514.50x = 45,752,003.09
5. Step 5: Solve for x
   x = 45,752,003.09/8,514.50
6. Step 6: Final answer
   x = 5,373.42