Finding the Fourth Proportional to 12,425.66, 18,613.89 and 8,046.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,425.66 : 18,613.89 = 8,046.20 : x
2. Step 2: Convert to fraction form
   12,425.66/18,613.89 = 8,046.20/x
3. Step 3: Cross multiply
   12,425.66x = 18,613.89 × 8,046.20
4. Step 4: Simplify right side
   12,425.66x = 149,771,081.72
5. Step 5: Solve for x
   x = 149,771,081.72/12,425.66
6. Step 6: Final answer
   x = 12,053.37