Finding the Fourth Proportional to 123.97, 185.89 and 55.46

Step by Step Solution

1. Step 1: Write the proportion equation
   123.97 : 185.89 = 55.46 : x
2. Step 2: Convert to fraction form
   123.97/185.89 = 55.46/x
3. Step 3: Cross multiply
   123.97x = 185.89 × 55.46
4. Step 4: Simplify right side
   123.97x = 10,309.46
5. Step 5: Solve for x
   x = 10,309.46/123.97
6. Step 6: Final answer
   x = 83.16