Finding the Fourth Proportional to 6,308.19, 8,705.34 and 3,513.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,308.19 : 8,705.34 = 3,513.69 : x
2. Step 2: Convert to fraction form
   6,308.19/8,705.34 = 3,513.69/x
3. Step 3: Cross multiply
   6,308.19x = 8,705.34 × 3,513.69
4. Step 4: Simplify right side
   6,308.19x = 30,587,866.10
5. Step 5: Solve for x
   x = 30,587,866.10/6,308.19
6. Step 6: Final answer
   x = 4,848.91