Finding the Fourth Proportional to 12,426.72, 17,148.69 and 7,393.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,426.72 : 17,148.69 = 7,393.38 : x
2. Step 2: Convert to fraction form
   12,426.72/17,148.69 = 7,393.38/x
3. Step 3: Cross multiply
   12,426.72x = 17,148.69 × 7,393.38
4. Step 4: Simplify right side
   12,426.72x = 126,786,781.67
5. Step 5: Solve for x
   x = 126,786,781.67/12,426.72
6. Step 6: Final answer
   x = 10,202.76