Finding the Fourth Proportional to 8,141.72, 12,213.79 and 2,946.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,141.72 : 12,213.79 = 2,946.38 : x
2. Step 2: Convert to fraction form
   8,141.72/12,213.79 = 2,946.38/x
3. Step 3: Cross multiply
   8,141.72x = 12,213.79 × 2,946.38
4. Step 4: Simplify right side
   8,141.72x = 35,986,398.15
5. Step 5: Solve for x
   x = 35,986,398.15/8,141.72
6. Step 6: Final answer
   x = 4,420.00