Finding the Fourth Proportional to 111,928.71, 167,899.61 and 31,960.51

Step by Step Solution

1. Step 1: Write the proportion equation
   111,928.71 : 167,899.61 = 31,960.51 : x
2. Step 2: Convert to fraction form
   111,928.71/167,899.61 = 31,960.51/x
3. Step 3: Cross multiply
   111,928.71x = 167,899.61 × 31,960.51
4. Step 4: Simplify right side
   111,928.71x = 5,366,157,164.40
5. Step 5: Solve for x
   x = 5,366,157,164.40/111,928.71
6. Step 6: Final answer
   x = 47,942.63