Finding the Fourth Proportional to 10,139.83, 15,217.04 and 3,571.54

Step by Step Solution

1. Step 1: Write the proportion equation
   10,139.83 : 15,217.04 = 3,571.54 : x
2. Step 2: Convert to fraction form
   10,139.83/15,217.04 = 3,571.54/x
3. Step 3: Cross multiply
   10,139.83x = 15,217.04 × 3,571.54
4. Step 4: Simplify right side
   10,139.83x = 54,348,267.04
5. Step 5: Solve for x
   x = 54,348,267.04/10,139.83
6. Step 6: Final answer
   x = 5,359.88