Finding the Fourth Proportional to 5,630.45, 8,441.15 and 3,870.09

Step by Step Solution

1. Step 1: Write the proportion equation
   5,630.45 : 8,441.15 = 3,870.09 : x
2. Step 2: Convert to fraction form
   5,630.45/8,441.15 = 3,870.09/x
3. Step 3: Cross multiply
   5,630.45x = 8,441.15 × 3,870.09
4. Step 4: Simplify right side
   5,630.45x = 32,667,990.85
5. Step 5: Solve for x
   x = 32,667,990.85/5,630.45
6. Step 6: Final answer
   x = 5,802.03