Finding the Fourth Proportional to 11,760.11, 16,242.31 and 7,976.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,760.11 : 16,242.31 = 7,976.69 : x
2. Step 2: Convert to fraction form
   11,760.11/16,242.31 = 7,976.69/x
3. Step 3: Cross multiply
   11,760.11x = 16,242.31 × 7,976.69
4. Step 4: Simplify right side
   11,760.11x = 129,559,871.75
5. Step 5: Solve for x
   x = 129,559,871.75/11,760.11
6. Step 6: Final answer
   x = 11,016.89