Finding the Fourth Proportional to 72.56, 108.79 and 34.01

Step by Step Solution

1. Step 1: Write the proportion equation
   72.56 : 108.79 = 34.01 : x
2. Step 2: Convert to fraction form
   72.56/108.79 = 34.01/x
3. Step 3: Cross multiply
   72.56x = 108.79 × 34.01
4. Step 4: Simplify right side
   72.56x = 3,699.95
5. Step 5: Solve for x
   x = 3,699.95/72.56
6. Step 6: Final answer
   x = 50.99