Finding the Fourth Proportional to 10,367.33, 15,522.23 and 8,540.37

Step by Step Solution

1. Step 1: Write the proportion equation
   10,367.33 : 15,522.23 = 8,540.37 : x
2. Step 2: Convert to fraction form
   10,367.33/15,522.23 = 8,540.37/x
3. Step 3: Cross multiply
   10,367.33x = 15,522.23 × 8,540.37
4. Step 4: Simplify right side
   10,367.33x = 132,565,608.78
5. Step 5: Solve for x
   x = 132,565,608.78/10,367.33
6. Step 6: Final answer
   x = 12,786.87