Finding the Fourth Proportional to 11,087.74, 16,629.72 and 3,691.36

Step by Step Solution

1. Step 1: Write the proportion equation
   11,087.74 : 16,629.72 = 3,691.36 : x
2. Step 2: Convert to fraction form
   11,087.74/16,629.72 = 3,691.36/x
3. Step 3: Cross multiply
   11,087.74x = 16,629.72 × 3,691.36
4. Step 4: Simplify right side
   11,087.74x = 61,386,283.22
5. Step 5: Solve for x
   x = 61,386,283.22/11,087.74
6. Step 6: Final answer
   x = 5,536.41