Finding the Fourth Proportional to 11,083.87, 16,628.31 and 3,688.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,083.87 : 16,628.31 = 3,688.62 : x
2. Step 2: Convert to fraction form
   11,083.87/16,628.31 = 3,688.62/x
3. Step 3: Cross multiply
   11,083.87x = 16,628.31 × 3,688.62
4. Step 4: Simplify right side
   11,083.87x = 61,335,516.83
5. Step 5: Solve for x
   x = 61,335,516.83/11,083.87
6. Step 6: Final answer
   x = 5,533.76