Finding the Fourth Proportional to 123.31, 185.04 and 54.84

Step by Step Solution

1. Step 1: Write the proportion equation
   123.31 : 185.04 = 54.84 : x
2. Step 2: Convert to fraction form
   123.31/185.04 = 54.84/x
3. Step 3: Cross multiply
   123.31x = 185.04 × 54.84
4. Step 4: Simplify right side
   123.31x = 10,147.59
5. Step 5: Solve for x
   x = 10,147.59/123.31
6. Step 6: Final answer
   x = 82.29