Finding the Fourth Proportional to 6,401.21, 8,830.91 and 3,882.35

Step by Step Solution

1. Step 1: Write the proportion equation
   6,401.21 : 8,830.91 = 3,882.35 : x
2. Step 2: Convert to fraction form
   6,401.21/8,830.91 = 3,882.35/x
3. Step 3: Cross multiply
   6,401.21x = 8,830.91 × 3,882.35
4. Step 4: Simplify right side
   6,401.21x = 34,284,715.22
5. Step 5: Solve for x
   x = 34,284,715.22/6,401.21
6. Step 6: Final answer
   x = 5,355.98