Finding the Fourth Proportional to 127.31, 190.96 and 112.83

Step by Step Solution

1. Step 1: Write the proportion equation
   127.31 : 190.96 = 112.83 : x
2. Step 2: Convert to fraction form
   127.31/190.96 = 112.83/x
3. Step 3: Cross multiply
   127.31x = 190.96 × 112.83
4. Step 4: Simplify right side
   127.31x = 21,545.02
5. Step 5: Solve for x
   x = 21,545.02/127.31
6. Step 6: Final answer
   x = 169.24