Finding the Fourth Proportional to 11,086.07, 16,627.28 and 3,689.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,086.07 : 16,627.28 = 3,689.15 : x
2. Step 2: Convert to fraction form
   11,086.07/16,627.28 = 3,689.15/x
3. Step 3: Cross multiply
   11,086.07x = 16,627.28 × 3,689.15
4. Step 4: Simplify right side
   11,086.07x = 61,340,428.43
5. Step 5: Solve for x
   x = 61,340,428.43/11,086.07
6. Step 6: Final answer
   x = 5,533.11