Finding the Fourth Proportional to 111.90, 167.91 and 73.27

Step by Step Solution

1. Step 1: Write the proportion equation
   111.90 : 167.91 = 73.27 : x
2. Step 2: Convert to fraction form
   111.90/167.91 = 73.27/x
3. Step 3: Cross multiply
   111.90x = 167.91 × 73.27
4. Step 4: Simplify right side
   111.90x = 12,302.77
5. Step 5: Solve for x
   x = 12,302.77/111.90
6. Step 6: Final answer
   x = 109.94