Finding the Fourth Proportional to 6,123.28, 8,442.48 and 5,065.44

Step by Step Solution

1. Step 1: Write the proportion equation
   6,123.28 : 8,442.48 = 5,065.44 : x
2. Step 2: Convert to fraction form
   6,123.28/8,442.48 = 5,065.44/x
3. Step 3: Cross multiply
   6,123.28x = 8,442.48 × 5,065.44
4. Step 4: Simplify right side
   6,123.28x = 42,764,875.89
5. Step 5: Solve for x
   x = 42,764,875.89/6,123.28
6. Step 6: Final answer
   x = 6,983.98