Finding the Fourth Proportional to 42,394.14, 58,471.61 and 31,059.54

Step by Step Solution

1. Step 1: Write the proportion equation
   42,394.14 : 58,471.61 = 31,059.54 : x
2. Step 2: Convert to fraction form
   42,394.14/58,471.61 = 31,059.54/x
3. Step 3: Cross multiply
   42,394.14x = 58,471.61 × 31,059.54
4. Step 4: Simplify right side
   42,394.14x = 1,816,101,154.36
5. Step 5: Solve for x
   x = 1,816,101,154.36/42,394.14
6. Step 6: Final answer
   x = 42,838.49