Finding the Fourth Proportional to 31,113.38, 42,935.82 and 16,966.38

Step by Step Solution

1. Step 1: Write the proportion equation
   31,113.38 : 42,935.82 = 16,966.38 : x
2. Step 2: Convert to fraction form
   31,113.38/42,935.82 = 16,966.38/x
3. Step 3: Cross multiply
   31,113.38x = 42,935.82 × 16,966.38
4. Step 4: Simplify right side
   31,113.38x = 728,465,437.73
5. Step 5: Solve for x
   x = 728,465,437.73/31,113.38
6. Step 6: Final answer
   x = 23,413.25