Finding the Fourth Proportional to 11,856.49, 16,369.59 and 7,609.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,856.49 : 16,369.59 = 7,609.38 : x
2. Step 2: Convert to fraction form
   11,856.49/16,369.59 = 7,609.38/x
3. Step 3: Cross multiply
   11,856.49x = 16,369.59 × 7,609.38
4. Step 4: Simplify right side
   11,856.49x = 124,562,430.75
5. Step 5: Solve for x
   x = 124,562,430.75/11,856.49
6. Step 6: Final answer
   x = 10,505.84