Finding the Fourth Proportional to 12,396.72, 17,108.28 and 7,092.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,396.72 : 17,108.28 = 7,092.24 : x
2. Step 2: Convert to fraction form
   12,396.72/17,108.28 = 7,092.24/x
3. Step 3: Cross multiply
   12,396.72x = 17,108.28 × 7,092.24
4. Step 4: Simplify right side
   12,396.72x = 121,336,027.75
5. Step 5: Solve for x
   x = 121,336,027.75/12,396.72
6. Step 6: Final answer
   x = 9,787.75