Finding the Fourth Proportional to 31,057.94, 42,859.41 and 16,910.54

Step by Step Solution

1. Step 1: Write the proportion equation
   31,057.94 : 42,859.41 = 16,910.54 : x
2. Step 2: Convert to fraction form
   31,057.94/42,859.41 = 16,910.54/x
3. Step 3: Cross multiply
   31,057.94x = 42,859.41 × 16,910.54
4. Step 4: Simplify right side
   31,057.94x = 724,775,767.18
5. Step 5: Solve for x
   x = 724,775,767.18/31,057.94
6. Step 6: Final answer
   x = 23,336.25