Finding the Fourth Proportional to 123.43, 185.20 and 69.37

Step by Step Solution

1. Step 1: Write the proportion equation
   123.43 : 185.20 = 69.37 : x
2. Step 2: Convert to fraction form
   123.43/185.20 = 69.37/x
3. Step 3: Cross multiply
   123.43x = 185.20 × 69.37
4. Step 4: Simplify right side
   123.43x = 12,847.32
5. Step 5: Solve for x
   x = 12,847.32/123.43
6. Step 6: Final answer
   x = 104.09