Finding the Fourth Proportional to 82.37, 123.55 and 43.29

Step by Step Solution

1. Step 1: Write the proportion equation
   82.37 : 123.55 = 43.29 : x
2. Step 2: Convert to fraction form
   82.37/123.55 = 43.29/x
3. Step 3: Cross multiply
   82.37x = 123.55 × 43.29
4. Step 4: Simplify right side
   82.37x = 5,348.37
5. Step 5: Solve for x
   x = 5,348.37/82.37
6. Step 6: Final answer
   x = 64.93