Finding the Fourth Proportional to 52.71, 72.72 and 31.98

Step by Step Solution

1. Step 1: Write the proportion equation
   52.71 : 72.72 = 31.98 : x
2. Step 2: Convert to fraction form
   52.71/72.72 = 31.98/x
3. Step 3: Cross multiply
   52.71x = 72.72 × 31.98
4. Step 4: Simplify right side
   52.71x = 2,325.59
5. Step 5: Solve for x
   x = 2,325.59/52.71
6. Step 6: Final answer
   x = 44.12