Finding the Fourth Proportional to 82.34, 123.26 and 43.73

Step by Step Solution

1. Step 1: Write the proportion equation
   82.34 : 123.26 = 43.73 : x
2. Step 2: Convert to fraction form
   82.34/123.26 = 43.73/x
3. Step 3: Cross multiply
   82.34x = 123.26 × 43.73
4. Step 4: Simplify right side
   82.34x = 5,389.32
5. Step 5: Solve for x
   x = 5,389.32/82.34
6. Step 6: Final answer
   x = 65.45