Finding the Fourth Proportional to 20,743.13, 31,112.23 and 5,751.34

Step by Step Solution

1. Step 1: Write the proportion equation
   20,743.13 : 31,112.23 = 5,751.34 : x
2. Step 2: Convert to fraction form
   20,743.13/31,112.23 = 5,751.34/x
3. Step 3: Cross multiply
   20,743.13x = 31,112.23 × 5,751.34
4. Step 4: Simplify right side
   20,743.13x = 178,937,012.89
5. Step 5: Solve for x
   x = 178,937,012.89/20,743.13
6. Step 6: Final answer
   x = 8,626.33