Finding the Fourth Proportional to 111.31, 167.24 and 98.35

Step by Step Solution

1. Step 1: Write the proportion equation
   111.31 : 167.24 = 98.35 : x
2. Step 2: Convert to fraction form
   111.31/167.24 = 98.35/x
3. Step 3: Cross multiply
   111.31x = 167.24 × 98.35
4. Step 4: Simplify right side
   111.31x = 16,447.56
5. Step 5: Solve for x
   x = 16,447.56/111.31
6. Step 6: Final answer
   x = 147.76