Finding the Fourth Proportional to 123.82, 185.34 and 69.55

Step by Step Solution

1. Step 1: Write the proportion equation
   123.82 : 185.34 = 69.55 : x
2. Step 2: Convert to fraction form
   123.82/185.34 = 69.55/x
3. Step 3: Cross multiply
   123.82x = 185.34 × 69.55
4. Step 4: Simplify right side
   123.82x = 12,890.40
5. Step 5: Solve for x
   x = 12,890.40/123.82
6. Step 6: Final answer
   x = 104.11