Finding the Fourth Proportional to 88.48, 132.69 and 42.82

Step by Step Solution

1. Step 1: Write the proportion equation
   88.48 : 132.69 = 42.82 : x
2. Step 2: Convert to fraction form
   88.48/132.69 = 42.82/x
3. Step 3: Cross multiply
   88.48x = 132.69 × 42.82
4. Step 4: Simplify right side
   88.48x = 5,681.79
5. Step 5: Solve for x
   x = 5,681.79/88.48
6. Step 6: Final answer
   x = 64.22