Finding the Fourth Proportional to 11,651.75, 16,065.49 and 9,519.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,651.75 : 16,065.49 = 9,519.42 : x
2. Step 2: Convert to fraction form
   11,651.75/16,065.49 = 9,519.42/x
3. Step 3: Cross multiply
   11,651.75x = 16,065.49 × 9,519.42
4. Step 4: Simplify right side
   11,651.75x = 152,934,146.82
5. Step 5: Solve for x
   x = 152,934,146.82/11,651.75
6. Step 6: Final answer
   x = 13,125.42