Finding the Fourth Proportional to 111.50, 167.06 and 65.76

Step by Step Solution

1. Step 1: Write the proportion equation
   111.50 : 167.06 = 65.76 : x
2. Step 2: Convert to fraction form
   111.50/167.06 = 65.76/x
3. Step 3: Cross multiply
   111.50x = 167.06 × 65.76
4. Step 4: Simplify right side
   111.50x = 10,985.87
5. Step 5: Solve for x
   x = 10,985.87/111.50
6. Step 6: Final answer
   x = 98.53