Finding the Fourth Proportional to 6,819.88, 9,411.42 and 3,835.72

Step by Step Solution

1. Step 1: Write the proportion equation
   6,819.88 : 9,411.42 = 3,835.72 : x
2. Step 2: Convert to fraction form
   6,819.88/9,411.42 = 3,835.72/x
3. Step 3: Cross multiply
   6,819.88x = 9,411.42 × 3,835.72
4. Step 4: Simplify right side
   6,819.88x = 36,099,571.92
5. Step 5: Solve for x
   x = 36,099,571.92/6,819.88
6. Step 6: Final answer
   x = 5,293.29