Finding the Fourth Proportional to 11,747.07, 16,217.96 and 7,771.59

Step by Step Solution

1. Step 1: Write the proportion equation
   11,747.07 : 16,217.96 = 7,771.59 : x
2. Step 2: Convert to fraction form
   11,747.07/16,217.96 = 7,771.59/x
3. Step 3: Cross multiply
   11,747.07x = 16,217.96 × 7,771.59
4. Step 4: Simplify right side
   11,747.07x = 126,039,296.90
5. Step 5: Solve for x
   x = 126,039,296.90/11,747.07
6. Step 6: Final answer
   x = 10,729.42