Finding the Fourth Proportional to 8,308.05, 12,464.42 and 3,381.22

Step by Step Solution

1. Step 1: Write the proportion equation
   8,308.05 : 12,464.42 = 3,381.22 : x
2. Step 2: Convert to fraction form
   8,308.05/12,464.42 = 3,381.22/x
3. Step 3: Cross multiply
   8,308.05x = 12,464.42 × 3,381.22
4. Step 4: Simplify right side
   8,308.05x = 42,144,970.23
5. Step 5: Solve for x
   x = 42,144,970.23/8,308.05
6. Step 6: Final answer
   x = 5,072.79