Finding the Fourth Proportional to 8,309.16, 12,468.70 and 3,378.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,309.16 : 12,468.70 = 3,378.42 : x
2. Step 2: Convert to fraction form
   8,309.16/12,468.70 = 3,378.42/x
3. Step 3: Cross multiply
   8,309.16x = 12,468.70 × 3,378.42
4. Step 4: Simplify right side
   8,309.16x = 42,124,505.45
5. Step 5: Solve for x
   x = 42,124,505.45/8,309.16
6. Step 6: Final answer
   x = 5,069.65