Finding the Fourth Proportional to 17,859.06, 24,648.42 and 13,603.32

Step by Step Solution

1. Step 1: Write the proportion equation
   17,859.06 : 24,648.42 = 13,603.32 : x
2. Step 2: Convert to fraction form
   17,859.06/24,648.42 = 13,603.32/x
3. Step 3: Cross multiply
   17,859.06x = 24,648.42 × 13,603.32
4. Step 4: Simplify right side
   17,859.06x = 335,300,344.75
5. Step 5: Solve for x
   x = 335,300,344.75/17,859.06
6. Step 6: Final answer
   x = 18,774.80