Finding the Fourth Proportional to 72.08, 108.04 and 46.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72.08 : 108.04 = 46.42 : x
2. Step 2: Convert to fraction form
   72.08/108.04 = 46.42/x
3. Step 3: Cross multiply
   72.08x = 108.04 × 46.42
4. Step 4: Simplify right side
   72.08x = 5,015.00
5. Step 5: Solve for x
   x = 5,015.00/72.08
6. Step 6: Final answer
   x = 69.58