Finding the Fourth Proportional to 12,399.40, 17,110.56 and 7,364.26

Step by Step Solution

1. Step 1: Write the proportion equation
   12,399.40 : 17,110.56 = 7,364.26 : x
2. Step 2: Convert to fraction form
   12,399.40/17,110.56 = 7,364.26/x
3. Step 3: Cross multiply
   12,399.40x = 17,110.56 × 7,364.26
4. Step 4: Simplify right side
   12,399.40x = 126,006,612.59
5. Step 5: Solve for x
   x = 126,006,612.59/12,399.40
6. Step 6: Final answer
   x = 10,162.32