Finding the Fourth Proportional to 89.50, 123.52 and 50.69

Step by Step Solution

1. Step 1: Write the proportion equation
   89.50 : 123.52 = 50.69 : x
2. Step 2: Convert to fraction form
   89.50/123.52 = 50.69/x
3. Step 3: Cross multiply
   89.50x = 123.52 × 50.69
4. Step 4: Simplify right side
   89.50x = 6,261.23
5. Step 5: Solve for x
   x = 6,261.23/89.50
6. Step 6: Final answer
   x = 69.96