Finding the Fourth Proportional to 11,087.35, 16,619.34 and 3,689.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,087.35 : 16,619.34 = 3,689.83 : x
2. Step 2: Convert to fraction form
   11,087.35/16,619.34 = 3,689.83/x
3. Step 3: Cross multiply
   11,087.35x = 16,619.34 × 3,689.83
4. Step 4: Simplify right side
   11,087.35x = 61,322,539.31
5. Step 5: Solve for x
   x = 61,322,539.31/11,087.35
6. Step 6: Final answer
   x = 5,530.86