Finding the Fourth Proportional to 8,116.63, 12,165.71 and 3,433.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,116.63 : 12,165.71 = 3,433.72 : x
2. Step 2: Convert to fraction form
   8,116.63/12,165.71 = 3,433.72/x
3. Step 3: Cross multiply
   8,116.63x = 12,165.71 × 3,433.72
4. Step 4: Simplify right side
   8,116.63x = 41,773,580.91
5. Step 5: Solve for x
   x = 41,773,580.91/8,116.63
6. Step 6: Final answer
   x = 5,146.67