Finding the Fourth Proportional to 42,550.38, 58,800.45 and 31,921.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,550.38 : 58,800.45 = 31,921.56 : x
2. Step 2: Convert to fraction form
   42,550.38/58,800.45 = 31,921.56/x
3. Step 3: Cross multiply
   42,550.38x = 58,800.45 × 31,921.56
4. Step 4: Simplify right side
   42,550.38x = 1,877,002,092.70
5. Step 5: Solve for x
   x = 1,877,002,092.70/42,550.38
6. Step 6: Final answer
   x = 44,112.46