Finding the Fourth Proportional to 16,540.81, 22,824.65 and 9,370.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,540.81 : 22,824.65 = 9,370.15 : x
2. Step 2: Convert to fraction form
   16,540.81/22,824.65 = 9,370.15/x
3. Step 3: Cross multiply
   16,540.81x = 22,824.65 × 9,370.15
4. Step 4: Simplify right side
   16,540.81x = 213,870,360.56
5. Step 5: Solve for x
   x = 213,870,360.56/16,540.81
6. Step 6: Final answer
   x = 12,929.86