Finding the Fourth Proportional to 8,111.35, 12,165.81 and 3,184.39

Step by Step Solution

1. Step 1: Write the proportion equation
   8,111.35 : 12,165.81 = 3,184.39 : x
2. Step 2: Convert to fraction form
   8,111.35/12,165.81 = 3,184.39/x
3. Step 3: Cross multiply
   8,111.35x = 12,165.81 × 3,184.39
4. Step 4: Simplify right side
   8,111.35x = 38,740,683.71
5. Step 5: Solve for x
   x = 38,740,683.71/8,111.35
6. Step 6: Final answer
   x = 4,776.11