Finding the Fourth Proportional to 21,326.42, 31,990.38 and 5,744.42

Step by Step Solution

1. Step 1: Write the proportion equation
   21,326.42 : 31,990.38 = 5,744.42 : x
2. Step 2: Convert to fraction form
   21,326.42/31,990.38 = 5,744.42/x
3. Step 3: Cross multiply
   21,326.42x = 31,990.38 × 5,744.42
4. Step 4: Simplify right side
   21,326.42x = 183,766,178.68
5. Step 5: Solve for x
   x = 183,766,178.68/21,326.42
6. Step 6: Final answer
   x = 8,616.83