Finding the Fourth Proportional to 21,144.72, 31,714.55 and 5,563.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,144.72 : 31,714.55 = 5,563.56 : x
2. Step 2: Convert to fraction form
   21,144.72/31,714.55 = 5,563.56/x
3. Step 3: Cross multiply
   21,144.72x = 31,714.55 × 5,563.56
4. Step 4: Simplify right side
   21,144.72x = 176,445,801.80
5. Step 5: Solve for x
   x = 176,445,801.80/21,144.72
6. Step 6: Final answer
   x = 8,344.67