Finding the Fourth Proportional to 123.01, 184.55 and 54.59

Step by Step Solution

1. Step 1: Write the proportion equation
   123.01 : 184.55 = 54.59 : x
2. Step 2: Convert to fraction form
   123.01/184.55 = 54.59/x
3. Step 3: Cross multiply
   123.01x = 184.55 × 54.59
4. Step 4: Simplify right side
   123.01x = 10,073.39
5. Step 5: Solve for x
   x = 10,073.39/123.01
6. Step 6: Final answer
   x = 81.89