Finding the Fourth Proportional to 11,615.27, 16,035.71 and 7,647.92

Step by Step Solution

1. Step 1: Write the proportion equation
   11,615.27 : 16,035.71 = 7,647.92 : x
2. Step 2: Convert to fraction form
   11,615.27/16,035.71 = 7,647.92/x
3. Step 3: Cross multiply
   11,615.27x = 16,035.71 × 7,647.92
4. Step 4: Simplify right side
   11,615.27x = 122,639,708.81
5. Step 5: Solve for x
   x = 122,639,708.81/11,615.27
6. Step 6: Final answer
   x = 10,558.49