Finding the Fourth Proportional to 6,402.67, 8,836.27 and 3,885.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,402.67 : 8,836.27 = 3,885.42 : x
2. Step 2: Convert to fraction form
   6,402.67/8,836.27 = 3,885.42/x
3. Step 3: Cross multiply
   6,402.67x = 8,836.27 × 3,885.42
4. Step 4: Simplify right side
   6,402.67x = 34,332,620.18
5. Step 5: Solve for x
   x = 34,332,620.18/6,402.67
6. Step 6: Final answer
   x = 5,362.23