Finding the Fourth Proportional to 72.43, 108.58 and 46.76

Step by Step Solution

1. Step 1: Write the proportion equation
   72.43 : 108.58 = 46.76 : x
2. Step 2: Convert to fraction form
   72.43/108.58 = 46.76/x
3. Step 3: Cross multiply
   72.43x = 108.58 × 46.76
4. Step 4: Simplify right side
   72.43x = 5,076.42
5. Step 5: Solve for x
   x = 5,076.42/72.43
6. Step 6: Final answer
   x = 70.09