Finding the Fourth Proportional to 31,144.24, 42,980.24 and 17,716.74

Step by Step Solution

1. Step 1: Write the proportion equation
   31,144.24 : 42,980.24 = 17,716.74 : x
2. Step 2: Convert to fraction form
   31,144.24/42,980.24 = 17,716.74/x
3. Step 3: Cross multiply
   31,144.24x = 42,980.24 × 17,716.74
4. Step 4: Simplify right side
   31,144.24x = 761,469,737.22
5. Step 5: Solve for x
   x = 761,469,737.22/31,144.24
6. Step 6: Final answer
   x = 24,449.78