Finding the Fourth Proportional to 112.25, 167.83 and 106.72

Step by Step Solution

1. Step 1: Write the proportion equation
   112.25 : 167.83 = 106.72 : x
2. Step 2: Convert to fraction form
   112.25/167.83 = 106.72/x
3. Step 3: Cross multiply
   112.25x = 167.83 × 106.72
4. Step 4: Simplify right side
   112.25x = 17,910.82
5. Step 5: Solve for x
   x = 17,910.82/112.25
6. Step 6: Final answer
   x = 159.56