Finding the Fourth Proportional to 72,568.71, 108,896.67 and 31,015.71

Step by Step Solution

1. Step 1: Write the proportion equation
   72,568.71 : 108,896.67 = 31,015.71 : x
2. Step 2: Convert to fraction form
   72,568.71/108,896.67 = 31,015.71/x
3. Step 3: Cross multiply
   72,568.71x = 108,896.67 × 31,015.71
4. Step 4: Simplify right side
   72,568.71x = 3,377,507,536.69
5. Step 5: Solve for x
   x = 3,377,507,536.69/72,568.71
6. Step 6: Final answer
   x = 46,542.20