Finding the Fourth Proportional to 52.73, 72.72 and 34.31

Step by Step Solution

1. Step 1: Write the proportion equation
   52.73 : 72.72 = 34.31 : x
2. Step 2: Convert to fraction form
   52.73/72.72 = 34.31/x
3. Step 3: Cross multiply
   52.73x = 72.72 × 34.31
4. Step 4: Simplify right side
   52.73x = 2,495.02
5. Step 5: Solve for x
   x = 2,495.02/52.73
6. Step 6: Final answer
   x = 47.32