Finding the Fourth Proportional to 21,255.93, 31,883.09 and 5,673.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,255.93 : 31,883.09 = 5,673.42 : x
2. Step 2: Convert to fraction form
   21,255.93/31,883.09 = 5,673.42/x
3. Step 3: Cross multiply
   21,255.93x = 31,883.09 × 5,673.42
4. Step 4: Simplify right side
   21,255.93x = 180,886,132.10
5. Step 5: Solve for x
   x = 180,886,132.10/21,255.93
6. Step 6: Final answer
   x = 8,509.91