Finding the Fourth Proportional to 21,231.47, 31,844.76 and 5,650.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,231.47 : 31,844.76 = 5,650.31 : x
2. Step 2: Convert to fraction form
   21,231.47/31,844.76 = 5,650.31/x
3. Step 3: Cross multiply
   21,231.47x = 31,844.76 × 5,650.31
4. Step 4: Simplify right side
   21,231.47x = 179,932,606.65
5. Step 5: Solve for x
   x = 179,932,606.65/21,231.47
6. Step 6: Final answer
   x = 8,474.81