Finding the Fourth Proportional to 42,674.52, 58,912.99 and 31,176.54

Step by Step Solution

1. Step 1: Write the proportion equation
   42,674.52 : 58,912.99 = 31,176.54 : x
2. Step 2: Convert to fraction form
   42,674.52/58,912.99 = 31,176.54/x
3. Step 3: Cross multiply
   42,674.52x = 58,912.99 × 31,176.54
4. Step 4: Simplify right side
   42,674.52x = 1,836,702,738.81
5. Step 5: Solve for x
   x = 1,836,702,738.81/42,674.52
6. Step 6: Final answer
   x = 43,039.80