Finding the Fourth Proportional to 11,491.79, 15,865.31 and 7,519.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,491.79 : 15,865.31 = 7,519.82 : x
2. Step 2: Convert to fraction form
   11,491.79/15,865.31 = 7,519.82/x
3. Step 3: Cross multiply
   11,491.79x = 15,865.31 × 7,519.82
4. Step 4: Simplify right side
   11,491.79x = 119,304,158.52
5. Step 5: Solve for x
   x = 119,304,158.52/11,491.79
6. Step 6: Final answer
   x = 10,381.69