Finding the Fourth Proportional to 11,757.30, 16,227.88 and 7,986.74

Step by Step Solution

1. Step 1: Write the proportion equation
   11,757.30 : 16,227.88 = 7,986.74 : x
2. Step 2: Convert to fraction form
   11,757.30/16,227.88 = 7,986.74/x
3. Step 3: Cross multiply
   11,757.30x = 16,227.88 × 7,986.74
4. Step 4: Simplify right side
   11,757.30x = 129,607,858.31
5. Step 5: Solve for x
   x = 129,607,858.31/11,757.30
6. Step 6: Final answer
   x = 11,023.61