Finding the Fourth Proportional to 16,515.34, 22,782.81 and 10,540.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,515.34 : 22,782.81 = 10,540.78 : x
2. Step 2: Convert to fraction form
   16,515.34/22,782.81 = 10,540.78/x
3. Step 3: Cross multiply
   16,515.34x = 22,782.81 × 10,540.78
4. Step 4: Simplify right side
   16,515.34x = 240,148,587.99
5. Step 5: Solve for x
   x = 240,148,587.99/16,515.34
6. Step 6: Final answer
   x = 14,540.94