Finding the Fourth Proportional to 11,940.72, 16,473.29 and 7,691.06

Step by Step Solution

1. Step 1: Write the proportion equation
   11,940.72 : 16,473.29 = 7,691.06 : x
2. Step 2: Convert to fraction form
   11,940.72/16,473.29 = 7,691.06/x
3. Step 3: Cross multiply
   11,940.72x = 16,473.29 × 7,691.06
4. Step 4: Simplify right side
   11,940.72x = 126,696,940.97
5. Step 5: Solve for x
   x = 126,696,940.97/11,940.72
6. Step 6: Final answer
   x = 10,610.49