Finding the Fourth Proportional to 11,071.69, 16,615.73 and 5,228.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,071.69 : 16,615.73 = 5,228.30 : x
2. Step 2: Convert to fraction form
   11,071.69/16,615.73 = 5,228.30/x
3. Step 3: Cross multiply
   11,071.69x = 16,615.73 × 5,228.30
4. Step 4: Simplify right side
   11,071.69x = 86,871,982.31
5. Step 5: Solve for x
   x = 86,871,982.31/11,071.69
6. Step 6: Final answer
   x = 7,846.32