Finding the Fourth Proportional to 17,603.16, 24,291.78 and 9,645.30

Step by Step Solution

1. Step 1: Write the proportion equation
   17,603.16 : 24,291.78 = 9,645.30 : x
2. Step 2: Convert to fraction form
   17,603.16/24,291.78 = 9,645.30/x
3. Step 3: Cross multiply
   17,603.16x = 24,291.78 × 9,645.30
4. Step 4: Simplify right side
   17,603.16x = 234,301,505.63
5. Step 5: Solve for x
   x = 234,301,505.63/17,603.16
6. Step 6: Final answer
   x = 13,310.20