Finding the Fourth Proportional to 8,309, 12,463.50 and 3,381.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,309 : 12,463.50 = 3,381.32 : x
2. Step 2: Convert to fraction form
   8,309/12,463.50 = 3,381.32/x
3. Step 3: Cross multiply
   8,309x = 12,463.50 × 3,381.32
4. Step 4: Simplify right side
   8,309x = 42,143,081.82
5. Step 5: Solve for x
   x = 42,143,081.82/8,309
6. Step 6: Final answer
   x = 5,071.98