Finding the Fourth Proportional to 12,418.62, 17,141.34 and 7,386.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,418.62 : 17,141.34 = 7,386.42 : x
2. Step 2: Convert to fraction form
   12,418.62/17,141.34 = 7,386.42/x
3. Step 3: Cross multiply
   12,418.62x = 17,141.34 × 7,386.42
4. Step 4: Simplify right side
   12,418.62x = 126,613,136.60
5. Step 5: Solve for x
   x = 126,613,136.60/12,418.62
6. Step 6: Final answer
   x = 10,195.43