Finding the Fourth Proportional to 82.99, 124.37 and 42.33

Step by Step Solution

1. Step 1: Write the proportion equation
   82.99 : 124.37 = 42.33 : x
2. Step 2: Convert to fraction form
   82.99/124.37 = 42.33/x
3. Step 3: Cross multiply
   82.99x = 124.37 × 42.33
4. Step 4: Simplify right side
   82.99x = 5,264.58
5. Step 5: Solve for x
   x = 5,264.58/82.99
6. Step 6: Final answer
   x = 63.44