Finding the Fourth Proportional to 11,009.82, 16,511.24 and 3,612.57

Step by Step Solution

1. Step 1: Write the proportion equation
   11,009.82 : 16,511.24 = 3,612.57 : x
2. Step 2: Convert to fraction form
   11,009.82/16,511.24 = 3,612.57/x
3. Step 3: Cross multiply
   11,009.82x = 16,511.24 × 3,612.57
4. Step 4: Simplify right side
   11,009.82x = 59,647,957.40
5. Step 5: Solve for x
   x = 59,647,957.40/11,009.82
6. Step 6: Final answer
   x = 5,417.70