Finding the Fourth Proportional to 6,086.40, 8,404.20 and 3,851.88

Step by Step Solution

1. Step 1: Write the proportion equation
   6,086.40 : 8,404.20 = 3,851.88 : x
2. Step 2: Convert to fraction form
   6,086.40/8,404.20 = 3,851.88/x
3. Step 3: Cross multiply
   6,086.40x = 8,404.20 × 3,851.88
4. Step 4: Simplify right side
   6,086.40x = 32,371,969.90
5. Step 5: Solve for x
   x = 32,371,969.90/6,086.40
6. Step 6: Final answer
   x = 5,318.74