Finding the Fourth Proportional to 72.63, 108.83 and 49.73

Step by Step Solution

1. Step 1: Write the proportion equation
   72.63 : 108.83 = 49.73 : x
2. Step 2: Convert to fraction form
   72.63/108.83 = 49.73/x
3. Step 3: Cross multiply
   72.63x = 108.83 × 49.73
4. Step 4: Simplify right side
   72.63x = 5,411.32
5. Step 5: Solve for x
   x = 5,411.32/72.63
6. Step 6: Final answer
   x = 74.51