Finding the Fourth Proportional to 72.48, 108.61 and 46.74

Step by Step Solution

1. Step 1: Write the proportion equation
   72.48 : 108.61 = 46.74 : x
2. Step 2: Convert to fraction form
   72.48/108.61 = 46.74/x
3. Step 3: Cross multiply
   72.48x = 108.61 × 46.74
4. Step 4: Simplify right side
   72.48x = 5,076.72
5. Step 5: Solve for x
   x = 5,076.72/72.48
6. Step 6: Final answer
   x = 70.04