Finding the Fourth Proportional to 20,535.30, 30,806.27 and 8,048.55

Step by Step Solution

1. Step 1: Write the proportion equation
   20,535.30 : 30,806.27 = 8,048.55 : x
2. Step 2: Convert to fraction form
   20,535.30/30,806.27 = 8,048.55/x
3. Step 3: Cross multiply
   20,535.30x = 30,806.27 × 8,048.55
4. Step 4: Simplify right side
   20,535.30x = 247,945,764.17
5. Step 5: Solve for x
   x = 247,945,764.17/20,535.30
6. Step 6: Final answer
   x = 12,074.13