Finding the Fourth Proportional to 111.98, 167.86 and 73.48

Step by Step Solution

1. Step 1: Write the proportion equation
   111.98 : 167.86 = 73.48 : x
2. Step 2: Convert to fraction form
   111.98/167.86 = 73.48/x
3. Step 3: Cross multiply
   111.98x = 167.86 × 73.48
4. Step 4: Simplify right side
   111.98x = 12,334.35
5. Step 5: Solve for x
   x = 12,334.35/111.98
6. Step 6: Final answer
   x = 110.15