Finding the Fourth Proportional to 5,709.10, 8,578.05 and 3,630.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,709.10 : 8,578.05 = 3,630.10 : x
2. Step 2: Convert to fraction form
   5,709.10/8,578.05 = 3,630.10/x
3. Step 3: Cross multiply
   5,709.10x = 8,578.05 × 3,630.10
4. Step 4: Simplify right side
   5,709.10x = 31,139,179.31
5. Step 5: Solve for x
   x = 31,139,179.31/5,709.10
6. Step 6: Final answer
   x = 5,454.31