Finding the Fourth Proportional to 20,594.33, 30,879.78 and 8,107.59

Step by Step Solution

1. Step 1: Write the proportion equation
   20,594.33 : 30,879.78 = 8,107.59 : x
2. Step 2: Convert to fraction form
   20,594.33/30,879.78 = 8,107.59/x
3. Step 3: Cross multiply
   20,594.33x = 30,879.78 × 8,107.59
4. Step 4: Simplify right side
   20,594.33x = 250,360,449.33
5. Step 5: Solve for x
   x = 250,360,449.33/20,594.33
6. Step 6: Final answer
   x = 12,156.77