Finding the Fourth Proportional to 73.86, 101.73 and 53.10

Step by Step Solution

1. Step 1: Write the proportion equation
   73.86 : 101.73 = 53.10 : x
2. Step 2: Convert to fraction form
   73.86/101.73 = 53.10/x
3. Step 3: Cross multiply
   73.86x = 101.73 × 53.10
4. Step 4: Simplify right side
   73.86x = 5,401.86
5. Step 5: Solve for x
   x = 5,401.86/73.86
6. Step 6: Final answer
   x = 73.14