Finding the Fourth Proportional to 123.39, 185.16 and 65.59

Step by Step Solution

1. Step 1: Write the proportion equation
   123.39 : 185.16 = 65.59 : x
2. Step 2: Convert to fraction form
   123.39/185.16 = 65.59/x
3. Step 3: Cross multiply
   123.39x = 185.16 × 65.59
4. Step 4: Simplify right side
   123.39x = 12,144.64
5. Step 5: Solve for x
   x = 12,144.64/123.39
6. Step 6: Final answer
   x = 98.42