Finding the Fourth Proportional to 10,146.18, 15,212.39 and 3,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,146.18 : 15,212.39 = 3,571.50 : x
2. Step 2: Convert to fraction form
   10,146.18/15,212.39 = 3,571.50/x
3. Step 3: Cross multiply
   10,146.18x = 15,212.39 × 3,571.50
4. Step 4: Simplify right side
   10,146.18x = 54,331,033.03
5. Step 5: Solve for x
   x = 54,331,033.03/10,146.18
6. Step 6: Final answer
   x = 5,354.83