Finding the Fourth Proportional to 47,639.06, 71,443.59 and 17,240.27

Step by Step Solution

1. Step 1: Write the proportion equation
   47,639.06 : 71,443.59 = 17,240.27 : x
2. Step 2: Convert to fraction form
   47,639.06/71,443.59 = 17,240.27/x
3. Step 3: Cross multiply
   47,639.06x = 71,443.59 × 17,240.27
4. Step 4: Simplify right side
   47,639.06x = 1,231,706,424.15
5. Step 5: Solve for x
   x = 1,231,706,424.15/47,639.06
6. Step 6: Final answer
   x = 25,854.97