Finding the Fourth Proportional to 123.83, 185.58 and 103.49

Step by Step Solution

1. Step 1: Write the proportion equation
   123.83 : 185.58 = 103.49 : x
2. Step 2: Convert to fraction form
   123.83/185.58 = 103.49/x
3. Step 3: Cross multiply
   123.83x = 185.58 × 103.49
4. Step 4: Simplify right side
   123.83x = 19,204.75
5. Step 5: Solve for x
   x = 19,204.75/123.83
6. Step 6: Final answer
   x = 155.10