Finding the Fourth Proportional to 11,536.35, 17,308.54 and 3,640.09

Step by Step Solution

1. Step 1: Write the proportion equation
   11,536.35 : 17,308.54 = 3,640.09 : x
2. Step 2: Convert to fraction form
   11,536.35/17,308.54 = 3,640.09/x
3. Step 3: Cross multiply
   11,536.35x = 17,308.54 × 3,640.09
4. Step 4: Simplify right side
   11,536.35x = 63,004,556.83
5. Step 5: Solve for x
   x = 63,004,556.83/11,536.35
6. Step 6: Final answer
   x = 5,461.39