Finding the Fourth Proportional to 21,229.61, 31,844.37 and 5,647.24

Step by Step Solution

1. Step 1: Write the proportion equation
   21,229.61 : 31,844.37 = 5,647.24 : x
2. Step 2: Convert to fraction form
   21,229.61/31,844.37 = 5,647.24/x
3. Step 3: Cross multiply
   21,229.61x = 31,844.37 × 5,647.24
4. Step 4: Simplify right side
   21,229.61x = 179,832,640.82
5. Step 5: Solve for x
   x = 179,832,640.82/21,229.61
6. Step 6: Final answer
   x = 8,470.84