Finding the Fourth Proportional to 72.71, 108.98 and 48.35

Step by Step Solution

1. Step 1: Write the proportion equation
   72.71 : 108.98 = 48.35 : x
2. Step 2: Convert to fraction form
   72.71/108.98 = 48.35/x
3. Step 3: Cross multiply
   72.71x = 108.98 × 48.35
4. Step 4: Simplify right side
   72.71x = 5,269.18
5. Step 5: Solve for x
   x = 5,269.18/72.71
6. Step 6: Final answer
   x = 72.47