Finding the Fourth Proportional to 11,284.92, 15,536.81 and 9,688.41

Step by Step Solution

1. Step 1: Write the proportion equation
   11,284.92 : 15,536.81 = 9,688.41 : x
2. Step 2: Convert to fraction form
   11,284.92/15,536.81 = 9,688.41/x
3. Step 3: Cross multiply
   11,284.92x = 15,536.81 × 9,688.41
4. Step 4: Simplify right side
   11,284.92x = 150,527,009.59
5. Step 5: Solve for x
   x = 150,527,009.59/11,284.92
6. Step 6: Final answer
   x = 13,338.78