Finding the Fourth Proportional to 13,766.18, 18,995.72 and 8,099.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,766.18 : 18,995.72 = 8,099.69 : x
2. Step 2: Convert to fraction form
   13,766.18/18,995.72 = 8,099.69/x
3. Step 3: Cross multiply
   13,766.18x = 18,995.72 × 8,099.69
4. Step 4: Simplify right side
   13,766.18x = 153,859,443.33
5. Step 5: Solve for x
   x = 153,859,443.33/13,766.18
6. Step 6: Final answer
   x = 11,176.63