Finding the Fourth Proportional to 82.43, 123.72 and 34.37

Step by Step Solution

1. Step 1: Write the proportion equation
   82.43 : 123.72 = 34.37 : x
2. Step 2: Convert to fraction form
   82.43/123.72 = 34.37/x
3. Step 3: Cross multiply
   82.43x = 123.72 × 34.37
4. Step 4: Simplify right side
   82.43x = 4,251.47
5. Step 5: Solve for x
   x = 4,251.47/82.43
6. Step 6: Final answer
   x = 51.58