Finding the Fourth Proportional to 11,435.52, 17,159.04 and 8,382.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,435.52 : 17,159.04 = 8,382.72 : x
2. Step 2: Convert to fraction form
   11,435.52/17,159.04 = 8,382.72/x
3. Step 3: Cross multiply
   11,435.52x = 17,159.04 × 8,382.72
4. Step 4: Simplify right side
   11,435.52x = 143,839,427.79
5. Step 5: Solve for x
   x = 143,839,427.79/11,435.52
6. Step 6: Final answer
   x = 12,578.30