Finding the Fourth Proportional to 123.98, 185.55 and 96.98

Step by Step Solution

1. Step 1: Write the proportion equation
   123.98 : 185.55 = 96.98 : x
2. Step 2: Convert to fraction form
   123.98/185.55 = 96.98/x
3. Step 3: Cross multiply
   123.98x = 185.55 × 96.98
4. Step 4: Simplify right side
   123.98x = 17,994.64
5. Step 5: Solve for x
   x = 17,994.64/123.98
6. Step 6: Final answer
   x = 145.14