Finding the Fourth Proportional to 11,588.81, 17,391.51 and 8,674.83

Step by Step Solution

1. Step 1: Write the proportion equation
   11,588.81 : 17,391.51 = 8,674.83 : x
2. Step 2: Convert to fraction form
   11,588.81/17,391.51 = 8,674.83/x
3. Step 3: Cross multiply
   11,588.81x = 17,391.51 × 8,674.83
4. Step 4: Simplify right side
   11,588.81x = 150,868,392.69
5. Step 5: Solve for x
   x = 150,868,392.69/11,588.81
6. Step 6: Final answer
   x = 13,018.46