Finding the Fourth Proportional to 13,160.27, 18,155.25 and 8,124.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,160.27 : 18,155.25 = 8,124.69 : x
2. Step 2: Convert to fraction form
   13,160.27/18,155.25 = 8,124.69/x
3. Step 3: Cross multiply
   13,160.27x = 18,155.25 × 8,124.69
4. Step 4: Simplify right side
   13,160.27x = 147,505,778.12
5. Step 5: Solve for x
   x = 147,505,778.12/13,160.27
6. Step 6: Final answer
   x = 11,208.42