Finding the Fourth Proportional to 111,943.09, 167,936.79 and 31,981.75

Step by Step Solution

1. Step 1: Write the proportion equation
   111,943.09 : 167,936.79 = 31,981.75 : x
2. Step 2: Convert to fraction form
   111,943.09/167,936.79 = 31,981.75/x
3. Step 3: Cross multiply
   111,943.09x = 167,936.79 × 31,981.75
4. Step 4: Simplify right side
   111,943.09x = 5,370,912,369.83
5. Step 5: Solve for x
   x = 5,370,912,369.83/111,943.09
6. Step 6: Final answer
   x = 47,978.95