Finding the Fourth Proportional to 20,165.46, 27,756.72 and 14,778.42

Step by Step Solution

1. Step 1: Write the proportion equation
   20,165.46 : 27,756.72 = 14,778.42 : x
2. Step 2: Convert to fraction form
   20,165.46/27,756.72 = 14,778.42/x
3. Step 3: Cross multiply
   20,165.46x = 27,756.72 × 14,778.42
4. Step 4: Simplify right side
   20,165.46x = 410,200,465.98
5. Step 5: Solve for x
   x = 410,200,465.98/20,165.46
6. Step 6: Final answer
   x = 20,341.74