Finding the Fourth Proportional to 31,123.40, 42,946.24 and 17,694.37

Step by Step Solution

1. Step 1: Write the proportion equation
   31,123.40 : 42,946.24 = 17,694.37 : x
2. Step 2: Convert to fraction form
   31,123.40/42,946.24 = 17,694.37/x
3. Step 3: Cross multiply
   31,123.40x = 42,946.24 × 17,694.37
4. Step 4: Simplify right side
   31,123.40x = 759,906,660.67
5. Step 5: Solve for x
   x = 759,906,660.67/31,123.40
6. Step 6: Final answer
   x = 24,415.93