Finding the Fourth Proportional to 72.57, 108.86 and 34.01

Step by Step Solution

1. Step 1: Write the proportion equation
   72.57 : 108.86 = 34.01 : x
2. Step 2: Convert to fraction form
   72.57/108.86 = 34.01/x
3. Step 3: Cross multiply
   72.57x = 108.86 × 34.01
4. Step 4: Simplify right side
   72.57x = 3,701.61
5. Step 5: Solve for x
   x = 3,701.61/72.57
6. Step 6: Final answer
   x = 51.01