Finding the Fourth Proportional to 31,287.30, 46,870.47 and 17,394.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,287.30 : 46,870.47 = 17,394.18 : x
2. Step 2: Convert to fraction form
   31,287.30/46,870.47 = 17,394.18/x
3. Step 3: Cross multiply
   31,287.30x = 46,870.47 × 17,394.18
4. Step 4: Simplify right side
   31,287.30x = 815,273,391.86
5. Step 5: Solve for x
   x = 815,273,391.86/31,287.30
6. Step 6: Final answer
   x = 26,057.65