Finding the Fourth Proportional to 11,822.09, 17,736.79 and 5,581.85

Step by Step Solution

1. Step 1: Write the proportion equation
   11,822.09 : 17,736.79 = 5,581.85 : x
2. Step 2: Convert to fraction form
   11,822.09/17,736.79 = 5,581.85/x
3. Step 3: Cross multiply
   11,822.09x = 17,736.79 × 5,581.85
4. Step 4: Simplify right side
   11,822.09x = 99,004,131.65
5. Step 5: Solve for x
   x = 99,004,131.65/11,822.09
6. Step 6: Final answer
   x = 8,374.50