Finding the Fourth Proportional to 12,766.17, 19,162.22 and 8,074.65

Step by Step Solution

1. Step 1: Write the proportion equation
   12,766.17 : 19,162.22 = 8,074.65 : x
2. Step 2: Convert to fraction form
   12,766.17/19,162.22 = 8,074.65/x
3. Step 3: Cross multiply
   12,766.17x = 19,162.22 × 8,074.65
4. Step 4: Simplify right side
   12,766.17x = 154,728,179.35
5. Step 5: Solve for x
   x = 154,728,179.35/12,766.17
6. Step 6: Final answer
   x = 12,120.17