Finding the Fourth Proportional to 123.55, 185.37 and 75.49

Step by Step Solution

1. Step 1: Write the proportion equation
   123.55 : 185.37 = 75.49 : x
2. Step 2: Convert to fraction form
   123.55/185.37 = 75.49/x
3. Step 3: Cross multiply
   123.55x = 185.37 × 75.49
4. Step 4: Simplify right side
   123.55x = 13,992.83
5. Step 5: Solve for x
   x = 13,992.83/123.55
6. Step 6: Final answer
   x = 113.26