Finding the Fourth Proportional to 82.37, 123.46 and 55.37

Step by Step Solution

1. Step 1: Write the proportion equation
   82.37 : 123.46 = 55.37 : x
2. Step 2: Convert to fraction form
   82.37/123.46 = 55.37/x
3. Step 3: Cross multiply
   82.37x = 123.46 × 55.37
4. Step 4: Simplify right side
   82.37x = 6,835.98
5. Step 5: Solve for x
   x = 6,835.98/82.37
6. Step 6: Final answer
   x = 82.99