Finding the Fourth Proportional to 89.82, 123.97 and 50.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89.82 : 123.97 = 50.50 : x
2. Step 2: Convert to fraction form
   89.82/123.97 = 50.50/x
3. Step 3: Cross multiply
   89.82x = 123.97 × 50.50
4. Step 4: Simplify right side
   89.82x = 6,259.77
5. Step 5: Solve for x
   x = 6,259.77/89.82
6. Step 6: Final answer
   x = 69.69