Finding the Fourth Proportional to 73.50, 101.45 and 50.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73.50 : 101.45 = 50.50 : x
2. Step 2: Convert to fraction form
   73.50/101.45 = 50.50/x
3. Step 3: Cross multiply
   73.50x = 101.45 × 50.50
4. Step 4: Simplify right side
   73.50x = 5,123.23
5. Step 5: Solve for x
   x = 5,123.23/73.50
6. Step 6: Final answer
   x = 69.70