Finding the Fourth Proportional to 8,112.59, 12,169.74 and 3,433.07

Step by Step Solution

1. Step 1: Write the proportion equation
   8,112.59 : 12,169.74 = 3,433.07 : x
2. Step 2: Convert to fraction form
   8,112.59/12,169.74 = 3,433.07/x
3. Step 3: Cross multiply
   8,112.59x = 12,169.74 × 3,433.07
4. Step 4: Simplify right side
   8,112.59x = 41,779,508.45
5. Step 5: Solve for x
   x = 41,779,508.45/8,112.59
6. Step 6: Final answer
   x = 5,149.96