Finding the Fourth Proportional to 42,046.92, 58,028.81 and 31,418.10

Step by Step Solution

1. Step 1: Write the proportion equation
   42,046.92 : 58,028.81 = 31,418.10 : x
2. Step 2: Convert to fraction form
   42,046.92/58,028.81 = 31,418.10/x
3. Step 3: Cross multiply
   42,046.92x = 58,028.81 × 31,418.10
4. Step 4: Simplify right side
   42,046.92x = 1,823,154,798.37
5. Step 5: Solve for x
   x = 1,823,154,798.37/42,046.92
6. Step 6: Final answer
   x = 43,360.01