Finding the Fourth Proportional to 20,109.73, 27,752.17 and 12,150.42

Step by Step Solution

1. Step 1: Write the proportion equation
   20,109.73 : 27,752.17 = 12,150.42 : x
2. Step 2: Convert to fraction form
   20,109.73/27,752.17 = 12,150.42/x
3. Step 3: Cross multiply
   20,109.73x = 27,752.17 × 12,150.42
4. Step 4: Simplify right side
   20,109.73x = 337,200,521.41
5. Step 5: Solve for x
   x = 337,200,521.41/20,109.73
6. Step 6: Final answer
   x = 16,768.03