Finding the Fourth Proportional to 20,552.88, 30,830.69 and 7,224.27

Step by Step Solution

1. Step 1: Write the proportion equation
   20,552.88 : 30,830.69 = 7,224.27 : x
2. Step 2: Convert to fraction form
   20,552.88/30,830.69 = 7,224.27/x
3. Step 3: Cross multiply
   20,552.88x = 30,830.69 × 7,224.27
4. Step 4: Simplify right side
   20,552.88x = 222,729,228.85
5. Step 5: Solve for x
   x = 222,729,228.85/20,552.88
6. Step 6: Final answer
   x = 10,836.89