Finding the Fourth Proportional to 8,126.67, 12,187.60 and 3,446.62

Step by Step Solution

1. Step 1: Write the proportion equation
   8,126.67 : 12,187.60 = 3,446.62 : x
2. Step 2: Convert to fraction form
   8,126.67/12,187.60 = 3,446.62/x
3. Step 3: Cross multiply
   8,126.67x = 12,187.60 × 3,446.62
4. Step 4: Simplify right side
   8,126.67x = 42,005,986.83
5. Step 5: Solve for x
   x = 42,005,986.83/8,126.67
6. Step 6: Final answer
   x = 5,168.90