Finding the Fourth Proportional to 12,215.31, 16,861.46 and 7,433.07

Step by Step Solution

1. Step 1: Write the proportion equation
   12,215.31 : 16,861.46 = 7,433.07 : x
2. Step 2: Convert to fraction form
   12,215.31/16,861.46 = 7,433.07/x
3. Step 3: Cross multiply
   12,215.31x = 16,861.46 × 7,433.07
4. Step 4: Simplify right side
   12,215.31x = 125,332,412.48
5. Step 5: Solve for x
   x = 125,332,412.48/12,215.31
6. Step 6: Final answer
   x = 10,260.27