Finding the Fourth Proportional to 42,871.25, 59,163.15 and 25,661.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,871.25 : 59,163.15 = 25,661.34 : x
2. Step 2: Convert to fraction form
   42,871.25/59,163.15 = 25,661.34/x
3. Step 3: Cross multiply
   42,871.25x = 59,163.15 × 25,661.34
4. Step 4: Simplify right side
   42,871.25x = 1,518,205,707.62
5. Step 5: Solve for x
   x = 1,518,205,707.62/42,871.25
6. Step 6: Final answer
   x = 35,413.15