Finding the Fourth Proportional to 21,227.27, 31,842.52 and 5,644.49

Step by Step Solution

1. Step 1: Write the proportion equation
   21,227.27 : 31,842.52 = 5,644.49 : x
2. Step 2: Convert to fraction form
   21,227.27/31,842.52 = 5,644.49/x
3. Step 3: Cross multiply
   21,227.27x = 31,842.52 × 5,644.49
4. Step 4: Simplify right side
   21,227.27x = 179,734,612.39
5. Step 5: Solve for x
   x = 179,734,612.39/21,227.27
6. Step 6: Final answer
   x = 8,467.16