Finding the Fourth Proportional to 42,800.17, 59,083.16 and 25,578.62

Step by Step Solution

1. Step 1: Write the proportion equation
   42,800.17 : 59,083.16 = 25,578.62 : x
2. Step 2: Convert to fraction form
   42,800.17/59,083.16 = 25,578.62/x
3. Step 3: Cross multiply
   42,800.17x = 59,083.16 × 25,578.62
4. Step 4: Simplify right side
   42,800.17x = 1,511,265,698.04
5. Step 5: Solve for x
   x = 1,511,265,698.04/42,800.17
6. Step 6: Final answer
   x = 35,309.81