Finding the Fourth Proportional to 8,933.72, 12,326.46 and 6,143

Step by Step Solution

1. Step 1: Write the proportion equation
   8,933.72 : 12,326.46 = 6,143 : x
2. Step 2: Convert to fraction form
   8,933.72/12,326.46 = 6,143/x
3. Step 3: Cross multiply
   8,933.72x = 12,326.46 × 6,143
4. Step 4: Simplify right side
   8,933.72x = 75,721,443.78
5. Step 5: Solve for x
   x = 75,721,443.78/8,933.72
6. Step 6: Final answer
   x = 8,475.91