Finding the Fourth Proportional to 13,650.94, 20,475.78 and 5,644.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,650.94 : 20,475.78 = 5,644.72 : x
2. Step 2: Convert to fraction form
   13,650.94/20,475.78 = 5,644.72/x
3. Step 3: Cross multiply
   13,650.94x = 20,475.78 × 5,644.72
4. Step 4: Simplify right side
   13,650.94x = 115,580,044.88
5. Step 5: Solve for x
   x = 115,580,044.88/13,650.94
6. Step 6: Final answer
   x = 8,466.82