Finding the Fourth Proportional to 72.42, 108.81 and 46.75

Step by Step Solution

1. Step 1: Write the proportion equation
   72.42 : 108.81 = 46.75 : x
2. Step 2: Convert to fraction form
   72.42/108.81 = 46.75/x
3. Step 3: Cross multiply
   72.42x = 108.81 × 46.75
4. Step 4: Simplify right side
   72.42x = 5,086.63
5. Step 5: Solve for x
   x = 5,086.63/72.42
6. Step 6: Final answer
   x = 70.24