Finding the Fourth Proportional to 13,834.43, 20,751.72 and 3,446.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,834.43 : 20,751.72 = 3,446.18 : x
2. Step 2: Convert to fraction form
   13,834.43/20,751.72 = 3,446.18/x
3. Step 3: Cross multiply
   13,834.43x = 20,751.72 × 3,446.18
4. Step 4: Simplify right side
   13,834.43x = 71,514,162.43
5. Step 5: Solve for x
   x = 71,514,162.43/13,834.43
6. Step 6: Final answer
   x = 5,169.29