Finding the Fourth Proportional to 12,399.28, 17,108.91 and 7,093.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,399.28 : 17,108.91 = 7,093.24 : x
2. Step 2: Convert to fraction form
   12,399.28/17,108.91 = 7,093.24/x
3. Step 3: Cross multiply
   12,399.28x = 17,108.91 × 7,093.24
4. Step 4: Simplify right side
   12,399.28x = 121,357,604.77
5. Step 5: Solve for x
   x = 121,357,604.77/12,399.28
6. Step 6: Final answer
   x = 9,787.47