Finding the Fourth Proportional to 6,819.86, 10,216.43 and 3,535.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,819.86 : 10,216.43 = 3,535.12 : x
2. Step 2: Convert to fraction form
   6,819.86/10,216.43 = 3,535.12/x
3. Step 3: Cross multiply
   6,819.86x = 10,216.43 × 3,535.12
4. Step 4: Simplify right side
   6,819.86x = 36,116,306.02
5. Step 5: Solve for x
   x = 36,116,306.02/6,819.86
6. Step 6: Final answer
   x = 5,295.75