Finding the Fourth Proportional to 31,144.25, 42,980.25 and 17,716.73

Step by Step Solution

1. Step 1: Write the proportion equation
   31,144.25 : 42,980.25 = 17,716.73 : x
2. Step 2: Convert to fraction form
   31,144.25/42,980.25 = 17,716.73/x
3. Step 3: Cross multiply
   31,144.25x = 42,980.25 × 17,716.73
4. Step 4: Simplify right side
   31,144.25x = 761,469,484.58
5. Step 5: Solve for x
   x = 761,469,484.58/31,144.25
6. Step 6: Final answer
   x = 24,449.76