Finding the Fourth Proportional to 127.98, 192.06 and 55.83

Step by Step Solution

1. Step 1: Write the proportion equation
   127.98 : 192.06 = 55.83 : x
2. Step 2: Convert to fraction form
   127.98/192.06 = 55.83/x
3. Step 3: Cross multiply
   127.98x = 192.06 × 55.83
4. Step 4: Simplify right side
   127.98x = 10,722.71
5. Step 5: Solve for x
   x = 10,722.71/127.98
6. Step 6: Final answer
   x = 83.78