Finding the Fourth Proportional to 114.31, 171.34 and 98.82

Step by Step Solution

1. Step 1: Write the proportion equation
   114.31 : 171.34 = 98.82 : x
2. Step 2: Convert to fraction form
   114.31/171.34 = 98.82/x
3. Step 3: Cross multiply
   114.31x = 171.34 × 98.82
4. Step 4: Simplify right side
   114.31x = 16,931.82
5. Step 5: Solve for x
   x = 16,931.82/114.31
6. Step 6: Final answer
   x = 148.12