Finding the Fourth Proportional to 20,397.98, 28,145.06 and 14,741.34

Step by Step Solution

1. Step 1: Write the proportion equation
   20,397.98 : 28,145.06 = 14,741.34 : x
2. Step 2: Convert to fraction form
   20,397.98/28,145.06 = 14,741.34/x
3. Step 3: Cross multiply
   20,397.98x = 28,145.06 × 14,741.34
4. Step 4: Simplify right side
   20,397.98x = 414,895,898.78
5. Step 5: Solve for x
   x = 414,895,898.78/20,397.98
6. Step 6: Final answer
   x = 20,340.05