Finding the Fourth Proportional to 12,397.72, 17,108.04 and 7,361.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,397.72 : 17,108.04 = 7,361.68 : x
2. Step 2: Convert to fraction form
   12,397.72/17,108.04 = 7,361.68/x
3. Step 3: Cross multiply
   12,397.72x = 17,108.04 × 7,361.68
4. Step 4: Simplify right side
   12,397.72x = 125,943,915.91
5. Step 5: Solve for x
   x = 125,943,915.91/12,397.72
6. Step 6: Final answer
   x = 10,158.64