Finding the Fourth Proportional to 115.42, 171.89 and 114.82

Step by Step Solution

1. Step 1: Write the proportion equation
   115.42 : 171.89 = 114.82 : x
2. Step 2: Convert to fraction form
   115.42/171.89 = 114.82/x
3. Step 3: Cross multiply
   115.42x = 171.89 × 114.82
4. Step 4: Simplify right side
   115.42x = 19,736.41
5. Step 5: Solve for x
   x = 19,736.41/115.42
6. Step 6: Final answer
   x = 171.00