Finding the Fourth Proportional to 6,385.83, 8,812.27 and 3,553.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,385.83 : 8,812.27 = 3,553.05 : x
2. Step 2: Convert to fraction form
   6,385.83/8,812.27 = 3,553.05/x
3. Step 3: Cross multiply
   6,385.83x = 8,812.27 × 3,553.05
4. Step 4: Simplify right side
   6,385.83x = 31,310,435.92
5. Step 5: Solve for x
   x = 31,310,435.92/6,385.83
6. Step 6: Final answer
   x = 4,903.11