Finding the Fourth Proportional to 11,085.50, 16,633.49 and 5,539.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,085.50 : 16,633.49 = 5,539.30 : x
2. Step 2: Convert to fraction form
   11,085.50/16,633.49 = 5,539.30/x
3. Step 3: Cross multiply
   11,085.50x = 16,633.49 × 5,539.30
4. Step 4: Simplify right side
   11,085.50x = 92,137,821.88
5. Step 5: Solve for x
   x = 92,137,821.88/11,085.50
6. Step 6: Final answer
   x = 8,311.56