Finding the Fourth Proportional to 10,144.82, 15,216.70 and 3,571.05

Step by Step Solution

1. Step 1: Write the proportion equation
   10,144.82 : 15,216.70 = 3,571.05 : x
2. Step 2: Convert to fraction form
   10,144.82/15,216.70 = 3,571.05/x
3. Step 3: Cross multiply
   10,144.82x = 15,216.70 × 3,571.05
4. Step 4: Simplify right side
   10,144.82x = 54,339,596.54
5. Step 5: Solve for x
   x = 54,339,596.54/10,144.82
6. Step 6: Final answer
   x = 5,356.39