Finding the Fourth Proportional to 73.50, 101.35 and 56.05

Step by Step Solution

1. Step 1: Write the proportion equation
   73.50 : 101.35 = 56.05 : x
2. Step 2: Convert to fraction form
   73.50/101.35 = 56.05/x
3. Step 3: Cross multiply
   73.50x = 101.35 × 56.05
4. Step 4: Simplify right side
   73.50x = 5,680.48
5. Step 5: Solve for x
   x = 5,680.48/73.50
6. Step 6: Final answer
   x = 77.29