Finding the Fourth Proportional to 11,940.41, 16,472.94 and 7,216.49

Step by Step Solution

1. Step 1: Write the proportion equation
   11,940.41 : 16,472.94 = 7,216.49 : x
2. Step 2: Convert to fraction form
   11,940.41/16,472.94 = 7,216.49/x
3. Step 3: Cross multiply
   11,940.41x = 16,472.94 × 7,216.49
4. Step 4: Simplify right side
   11,940.41x = 118,876,724.42
5. Step 5: Solve for x
   x = 118,876,724.42/11,940.41
6. Step 6: Final answer
   x = 9,955.84