Finding the Fourth Proportional to 82.02, 123.01 and 43.49

Step by Step Solution

1. Step 1: Write the proportion equation
   82.02 : 123.01 = 43.49 : x
2. Step 2: Convert to fraction form
   82.02/123.01 = 43.49/x
3. Step 3: Cross multiply
   82.02x = 123.01 × 43.49
4. Step 4: Simplify right side
   82.02x = 5,349.09
5. Step 5: Solve for x
   x = 5,349.09/82.02
6. Step 6: Final answer
   x = 65.21