Finding the Fourth Proportional to 11,071.63, 16,610.48 and 5,518.27

Step by Step Solution

1. Step 1: Write the proportion equation
   11,071.63 : 16,610.48 = 5,518.27 : x
2. Step 2: Convert to fraction form
   11,071.63/16,610.48 = 5,518.27/x
3. Step 3: Cross multiply
   11,071.63x = 16,610.48 × 5,518.27
4. Step 4: Simplify right side
   11,071.63x = 91,661,113.47
5. Step 5: Solve for x
   x = 91,661,113.47/11,071.63
6. Step 6: Final answer
   x = 8,278.92