Finding the Fourth Proportional to 10,681.98, 16,021.33 and 5,682.39

Step by Step Solution

1. Step 1: Write the proportion equation
   10,681.98 : 16,021.33 = 5,682.39 : x
2. Step 2: Convert to fraction form
   10,681.98/16,021.33 = 5,682.39/x
3. Step 3: Cross multiply
   10,681.98x = 16,021.33 × 5,682.39
4. Step 4: Simplify right side
   10,681.98x = 91,039,371.09
5. Step 5: Solve for x
   x = 91,039,371.09/10,681.98
6. Step 6: Final answer
   x = 8,522.71