Finding the Fourth Proportional to 6,168.31, 8,513.85 and 3,809.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,168.31 : 8,513.85 = 3,809.10 : x
2. Step 2: Convert to fraction form
   6,168.31/8,513.85 = 3,809.10/x
3. Step 3: Cross multiply
   6,168.31x = 8,513.85 × 3,809.10
4. Step 4: Simplify right side
   6,168.31x = 32,430,106.04
5. Step 5: Solve for x
   x = 32,430,106.04/6,168.31
6. Step 6: Final answer
   x = 5,257.54