Finding the Fourth Proportional to 20,066.54, 27,694.98 and 12,109.91

Step by Step Solution

1. Step 1: Write the proportion equation
   20,066.54 : 27,694.98 = 12,109.91 : x
2. Step 2: Convert to fraction form
   20,066.54/27,694.98 = 12,109.91/x
3. Step 3: Cross multiply
   20,066.54x = 27,694.98 × 12,109.91
4. Step 4: Simplify right side
   20,066.54x = 335,383,576.78
5. Step 5: Solve for x
   x = 335,383,576.78/20,066.54
6. Step 6: Final answer
   x = 16,713.58