Finding the Fourth Proportional to 42,850.69, 59,137.37 and 31,571.71

Step by Step Solution

1. Step 1: Write the proportion equation
   42,850.69 : 59,137.37 = 31,571.71 : x
2. Step 2: Convert to fraction form
   42,850.69/59,137.37 = 31,571.71/x
3. Step 3: Cross multiply
   42,850.69x = 59,137.37 × 31,571.71
4. Step 4: Simplify right side
   42,850.69x = 1,867,067,895.80
5. Step 5: Solve for x
   x = 1,867,067,895.80/42,850.69
6. Step 6: Final answer
   x = 43,571.48