Finding the Fourth Proportional to 6,371.21, 8,792.72 and 3,853.43

Step by Step Solution

1. Step 1: Write the proportion equation
   6,371.21 : 8,792.72 = 3,853.43 : x
2. Step 2: Convert to fraction form
   6,371.21/8,792.72 = 3,853.43/x
3. Step 3: Cross multiply
   6,371.21x = 8,792.72 × 3,853.43
4. Step 4: Simplify right side
   6,371.21x = 33,882,131.03
5. Step 5: Solve for x
   x = 33,882,131.03/6,371.21
6. Step 6: Final answer
   x = 5,318.01