Finding the Fourth Proportional to 31,092.84, 42,906.87 and 16,945.38

Step by Step Solution

1. Step 1: Write the proportion equation
   31,092.84 : 42,906.87 = 16,945.38 : x
2. Step 2: Convert to fraction form
   31,092.84/42,906.87 = 16,945.38/x
3. Step 3: Cross multiply
   31,092.84x = 42,906.87 × 16,945.38
4. Step 4: Simplify right side
   31,092.84x = 727,073,216.76
5. Step 5: Solve for x
   x = 727,073,216.76/31,092.84
6. Step 6: Final answer
   x = 23,383.94