Finding the Fourth Proportional to 20,061.68, 27,676.40 and 12,099.48

Step by Step Solution

1. Step 1: Write the proportion equation
   20,061.68 : 27,676.40 = 12,099.48 : x
2. Step 2: Convert to fraction form
   20,061.68/27,676.40 = 12,099.48/x
3. Step 3: Cross multiply
   20,061.68x = 27,676.40 × 12,099.48
4. Step 4: Simplify right side
   20,061.68x = 334,870,048.27
5. Step 5: Solve for x
   x = 334,870,048.27/20,061.68
6. Step 6: Final answer
   x = 16,692.02