Finding the Fourth Proportional to 20,763.10, 31,140.06 and 5,968.72

Step by Step Solution

1. Step 1: Write the proportion equation
   20,763.10 : 31,140.06 = 5,968.72 : x
2. Step 2: Convert to fraction form
   20,763.10/31,140.06 = 5,968.72/x
3. Step 3: Cross multiply
   20,763.10x = 31,140.06 × 5,968.72
4. Step 4: Simplify right side
   20,763.10x = 185,866,298.92
5. Step 5: Solve for x
   x = 185,866,298.92/20,763.10
6. Step 6: Final answer
   x = 8,951.76