Finding the Fourth Proportional to 123.38, 185.16 and 69.29

Step by Step Solution

1. Step 1: Write the proportion equation
   123.38 : 185.16 = 69.29 : x
2. Step 2: Convert to fraction form
   123.38/185.16 = 69.29/x
3. Step 3: Cross multiply
   123.38x = 185.16 × 69.29
4. Step 4: Simplify right side
   123.38x = 12,829.74
5. Step 5: Solve for x
   x = 12,829.74/123.38
6. Step 6: Final answer
   x = 103.99