Finding the Fourth Proportional to 42,040.15, 58,019.49 and 31,411.33

Step by Step Solution

1. Step 1: Write the proportion equation
   42,040.15 : 58,019.49 = 31,411.33 : x
2. Step 2: Convert to fraction form
   42,040.15/58,019.49 = 31,411.33/x
3. Step 3: Cross multiply
   42,040.15x = 58,019.49 × 31,411.33
4. Step 4: Simplify right side
   42,040.15x = 1,822,469,201.77
5. Step 5: Solve for x
   x = 1,822,469,201.77/42,040.15
6. Step 6: Final answer
   x = 43,350.69