Finding the Fourth Proportional to 127.30, 190.13 and 107.82

Step by Step Solution

1. Step 1: Write the proportion equation
   127.30 : 190.13 = 107.82 : x
2. Step 2: Convert to fraction form
   127.30/190.13 = 107.82/x
3. Step 3: Cross multiply
   127.30x = 190.13 × 107.82
4. Step 4: Simplify right side
   127.30x = 20,499.82
5. Step 5: Solve for x
   x = 20,499.82/127.30
6. Step 6: Final answer
   x = 161.04