Finding the Fourth Proportional to 134.52, 201.82 and 53.31

Step by Step Solution

1. Step 1: Write the proportion equation
   134.52 : 201.82 = 53.31 : x
2. Step 2: Convert to fraction form
   134.52/201.82 = 53.31/x
3. Step 3: Cross multiply
   134.52x = 201.82 × 53.31
4. Step 4: Simplify right side
   134.52x = 10,759.85
5. Step 5: Solve for x
   x = 10,759.85/134.52
6. Step 6: Final answer
   x = 79.99