Finding the Fourth Proportional to 20,247.27, 30,371.62 and 5,456.55

Step by Step Solution

1. Step 1: Write the proportion equation
   20,247.27 : 30,371.62 = 5,456.55 : x
2. Step 2: Convert to fraction form
   20,247.27/30,371.62 = 5,456.55/x
3. Step 3: Cross multiply
   20,247.27x = 30,371.62 × 5,456.55
4. Step 4: Simplify right side
   20,247.27x = 165,724,111.25
5. Step 5: Solve for x
   x = 165,724,111.25/20,247.27
6. Step 6: Final answer
   x = 8,185.01