Finding the Fourth Proportional to 72.52, 108.72 and 49.63

Step by Step Solution

1. Step 1: Write the proportion equation
   72.52 : 108.72 = 49.63 : x
2. Step 2: Convert to fraction form
   72.52/108.72 = 49.63/x
3. Step 3: Cross multiply
   72.52x = 108.72 × 49.63
4. Step 4: Simplify right side
   72.52x = 5,395.42
5. Step 5: Solve for x
   x = 5,395.42/72.52
6. Step 6: Final answer
   x = 74.40