Finding the Fourth Proportional to 72.02, 108.01 and 35.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72.02 : 108.01 = 35.42 : x
2. Step 2: Convert to fraction form
   72.02/108.01 = 35.42/x
3. Step 3: Cross multiply
   72.02x = 108.01 × 35.42
4. Step 4: Simplify right side
   72.02x = 3,825.71
5. Step 5: Solve for x
   x = 3,825.71/72.02
6. Step 6: Final answer
   x = 53.12