Finding the Fourth Proportional to 10,936.05, 16,408.89 and 5,740.71

Step by Step Solution

1. Step 1: Write the proportion equation
   10,936.05 : 16,408.89 = 5,740.71 : x
2. Step 2: Convert to fraction form
   10,936.05/16,408.89 = 5,740.71/x
3. Step 3: Cross multiply
   10,936.05x = 16,408.89 × 5,740.71
4. Step 4: Simplify right side
   10,936.05x = 94,198,678.91
5. Step 5: Solve for x
   x = 94,198,678.91/10,936.05
6. Step 6: Final answer
   x = 8,613.59