Finding the Fourth Proportional to 8,085.39, 12,131.04 and 3,406.58

Step by Step Solution

1. Step 1: Write the proportion equation
   8,085.39 : 12,131.04 = 3,406.58 : x
2. Step 2: Convert to fraction form
   8,085.39/12,131.04 = 3,406.58/x
3. Step 3: Cross multiply
   8,085.39x = 12,131.04 × 3,406.58
4. Step 4: Simplify right side
   8,085.39x = 41,325,297.59
5. Step 5: Solve for x
   x = 41,325,297.59/8,085.39
6. Step 6: Final answer
   x = 5,111.11