Finding the Fourth Proportional to 73.69, 101.79 and 53.05

Step by Step Solution

1. Step 1: Write the proportion equation
   73.69 : 101.79 = 53.05 : x
2. Step 2: Convert to fraction form
   73.69/101.79 = 53.05/x
3. Step 3: Cross multiply
   73.69x = 101.79 × 53.05
4. Step 4: Simplify right side
   73.69x = 5,399.96
5. Step 5: Solve for x
   x = 5,399.96/73.69
6. Step 6: Final answer
   x = 73.28