Finding the Fourth Proportional to 20,429.82, 28,127.98 and 17,433.63

Step by Step Solution

1. Step 1: Write the proportion equation
   20,429.82 : 28,127.98 = 17,433.63 : x
2. Step 2: Convert to fraction form
   20,429.82/28,127.98 = 17,433.63/x
3. Step 3: Cross multiply
   20,429.82x = 28,127.98 × 17,433.63
4. Step 4: Simplify right side
   20,429.82x = 490,372,638.48
5. Step 5: Solve for x
   x = 490,372,638.48/20,429.82
6. Step 6: Final answer
   x = 24,002.79