Finding the Fourth Proportional to 41,978.56, 57,934.51 and 31,349.74

Step by Step Solution

1. Step 1: Write the proportion equation
   41,978.56 : 57,934.51 = 31,349.74 : x
2. Step 2: Convert to fraction form
   41,978.56/57,934.51 = 31,349.74/x
3. Step 3: Cross multiply
   41,978.56x = 57,934.51 × 31,349.74
4. Step 4: Simplify right side
   41,978.56x = 1,816,231,825.53
5. Step 5: Solve for x
   x = 1,816,231,825.53/41,978.56
6. Step 6: Final answer
   x = 43,265.70