Finding the Fourth Proportional to 127.42, 191.42 and 116.48

Step by Step Solution

1. Step 1: Write the proportion equation
   127.42 : 191.42 = 116.48 : x
2. Step 2: Convert to fraction form
   127.42/191.42 = 116.48/x
3. Step 3: Cross multiply
   127.42x = 191.42 × 116.48
4. Step 4: Simplify right side
   127.42x = 22,297.37
5. Step 5: Solve for x
   x = 22,297.37/127.42
6. Step 6: Final answer
   x = 174.99