Finding the Fourth Proportional to 15,399.96, 23,106.89 and 8,826.15

Step by Step Solution

1. Step 1: Write the proportion equation
   15,399.96 : 23,106.89 = 8,826.15 : x
2. Step 2: Convert to fraction form
   15,399.96/23,106.89 = 8,826.15/x
3. Step 3: Cross multiply
   15,399.96x = 23,106.89 × 8,826.15
4. Step 4: Simplify right side
   15,399.96x = 203,944,833.04
5. Step 5: Solve for x
   x = 203,944,833.04/15,399.96
6. Step 6: Final answer
   x = 13,243.21