Finding the Fourth Proportional to 8,113.29, 12,171.89 and 2,269.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,113.29 : 12,171.89 = 2,269.81 : x
2. Step 2: Convert to fraction form
   8,113.29/12,171.89 = 2,269.81/x
3. Step 3: Cross multiply
   8,113.29x = 12,171.89 × 2,269.81
4. Step 4: Simplify right side
   8,113.29x = 27,627,877.64
5. Step 5: Solve for x
   x = 27,627,877.64/8,113.29
6. Step 6: Final answer
   x = 3,405.26