Finding the Fourth Proportional to 11,506.41, 17,175.49 and 10,661.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,506.41 : 17,175.49 = 10,661.31 : x
2. Step 2: Convert to fraction form
   11,506.41/17,175.49 = 10,661.31/x
3. Step 3: Cross multiply
   11,506.41x = 17,175.49 × 10,661.31
4. Step 4: Simplify right side
   11,506.41x = 183,113,196.64
5. Step 5: Solve for x
   x = 183,113,196.64/11,506.41
6. Step 6: Final answer
   x = 15,914.02