Finding the Fourth Proportional to 12,397.89, 17,108.78 and 7,092.36

Step by Step Solution

1. Step 1: Write the proportion equation
   12,397.89 : 17,108.78 = 7,092.36 : x
2. Step 2: Convert to fraction form
   12,397.89/17,108.78 = 7,092.36/x
3. Step 3: Cross multiply
   12,397.89x = 17,108.78 × 7,092.36
4. Step 4: Simplify right side
   12,397.89x = 121,341,644.65
5. Step 5: Solve for x
   x = 121,341,644.65/12,397.89
6. Step 6: Final answer
   x = 9,787.28