Finding the Fourth Proportional to 16,817.34, 25,218.18 and 5,721.03

Step by Step Solution

1. Step 1: Write the proportion equation
   16,817.34 : 25,218.18 = 5,721.03 : x
2. Step 2: Convert to fraction form
   16,817.34/25,218.18 = 5,721.03/x
3. Step 3: Cross multiply
   16,817.34x = 25,218.18 × 5,721.03
4. Step 4: Simplify right side
   16,817.34x = 144,273,964.33
5. Step 5: Solve for x
   x = 144,273,964.33/16,817.34
6. Step 6: Final answer
   x = 8,578.88