Finding the Fourth Proportional to 72.49, 108.69 and 48.37

Step by Step Solution

1. Step 1: Write the proportion equation
   72.49 : 108.69 = 48.37 : x
2. Step 2: Convert to fraction form
   72.49/108.69 = 48.37/x
3. Step 3: Cross multiply
   72.49x = 108.69 × 48.37
4. Step 4: Simplify right side
   72.49x = 5,257.34
5. Step 5: Solve for x
   x = 5,257.34/72.49
6. Step 6: Final answer
   x = 72.52