Finding the Fourth Proportional to 12,774, 19,162.08 and 3,540

Step by Step Solution

1. Step 1: Write the proportion equation
   12,774 : 19,162.08 = 3,540 : x
2. Step 2: Convert to fraction form
   12,774/19,162.08 = 3,540/x
3. Step 3: Cross multiply
   12,774x = 19,162.08 × 3,540
4. Step 4: Simplify right side
   12,774x = 67,833,763.20
5. Step 5: Solve for x
   x = 67,833,763.20/12,774
6. Step 6: Final answer
   x = 5,310.30