Finding the Fourth Proportional to 21,171.38, 31,758.89 and 5,589

Step by Step Solution

1. Step 1: Write the proportion equation
   21,171.38 : 31,758.89 = 5,589 : x
2. Step 2: Convert to fraction form
   21,171.38/31,758.89 = 5,589/x
3. Step 3: Cross multiply
   21,171.38x = 31,758.89 × 5,589
4. Step 4: Simplify right side
   21,171.38x = 177,500,408.27
5. Step 5: Solve for x
   x = 177,500,408.27/21,171.38
6. Step 6: Final answer
   x = 8,383.98