Finding the Fourth Proportional to 31,078.41, 42,887.39 and 16,930.41

Step by Step Solution

1. Step 1: Write the proportion equation
   31,078.41 : 42,887.39 = 16,930.41 : x
2. Step 2: Convert to fraction form
   31,078.41/42,887.39 = 16,930.41/x
3. Step 3: Cross multiply
   31,078.41x = 42,887.39 × 16,930.41
4. Step 4: Simplify right side
   31,078.41x = 726,101,011.88
5. Step 5: Solve for x
   x = 726,101,011.88/31,078.41
6. Step 6: Final answer
   x = 23,363.52