Finding the Fourth Proportional to 127.26, 190.71 and 111.99

Step by Step Solution

1. Step 1: Write the proportion equation
   127.26 : 190.71 = 111.99 : x
2. Step 2: Convert to fraction form
   127.26/190.71 = 111.99/x
3. Step 3: Cross multiply
   127.26x = 190.71 × 111.99
4. Step 4: Simplify right side
   127.26x = 21,357.61
5. Step 5: Solve for x
   x = 21,357.61/127.26
6. Step 6: Final answer
   x = 167.83