Finding the Fourth Proportional to 12,407.43, 18,626.94 and 8,043.15

Step by Step Solution

1. Step 1: Write the proportion equation
   12,407.43 : 18,626.94 = 8,043.15 : x
2. Step 2: Convert to fraction form
   12,407.43/18,626.94 = 8,043.15/x
3. Step 3: Cross multiply
   12,407.43x = 18,626.94 × 8,043.15
4. Step 4: Simplify right side
   12,407.43x = 149,819,272.46
5. Step 5: Solve for x
   x = 149,819,272.46/12,407.43
6. Step 6: Final answer
   x = 12,074.96