Finding the Fourth Proportional to 127.91, 192.15 and 101.18

Step by Step Solution

1. Step 1: Write the proportion equation
   127.91 : 192.15 = 101.18 : x
2. Step 2: Convert to fraction form
   127.91/192.15 = 101.18/x
3. Step 3: Cross multiply
   127.91x = 192.15 × 101.18
4. Step 4: Simplify right side
   127.91x = 19,440.78
5. Step 5: Solve for x
   x = 19,440.78/127.91
6. Step 6: Final answer
   x = 151.99