Finding the Fourth Proportional to 41,981.94, 57,939.16 and 31,353.12

Step by Step Solution

1. Step 1: Write the proportion equation
   41,981.94 : 57,939.16 = 31,353.12 : x
2. Step 2: Convert to fraction form
   41,981.94/57,939.16 = 31,353.12/x
3. Step 3: Cross multiply
   41,981.94x = 57,939.16 × 31,353.12
4. Step 4: Simplify right side
   41,981.94x = 1,816,573,436.18
5. Step 5: Solve for x
   x = 1,816,573,436.18/41,981.94
6. Step 6: Final answer
   x = 43,270.35