Finding the Fourth Proportional to 82.37, 123.27 and 56.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82.37 : 123.27 = 56.50 : x
2. Step 2: Convert to fraction form
   82.37/123.27 = 56.50/x
3. Step 3: Cross multiply
   82.37x = 123.27 × 56.50
4. Step 4: Simplify right side
   82.37x = 6,964.55
5. Step 5: Solve for x
   x = 6,964.55/82.37
6. Step 6: Final answer
   x = 84.56