Finding the Fourth Proportional to 71.82, 98.99 and 53.37

Step by Step Solution

1. Step 1: Write the proportion equation
   71.82 : 98.99 = 53.37 : x
2. Step 2: Convert to fraction form
   71.82/98.99 = 53.37/x
3. Step 3: Cross multiply
   71.82x = 98.99 × 53.37
4. Step 4: Simplify right side
   71.82x = 5,282.73
5. Step 5: Solve for x
   x = 5,282.73/71.82
6. Step 6: Final answer
   x = 73.56