Finding the Fourth Proportional to 17,643.30, 24,348.33 and 10,086.90

Step by Step Solution

1. Step 1: Write the proportion equation
   17,643.30 : 24,348.33 = 10,086.90 : x
2. Step 2: Convert to fraction form
   17,643.30/24,348.33 = 10,086.90/x
3. Step 3: Cross multiply
   17,643.30x = 24,348.33 × 10,086.90
4. Step 4: Simplify right side
   17,643.30x = 245,599,169.88
5. Step 5: Solve for x
   x = 245,599,169.88/17,643.30
6. Step 6: Final answer
   x = 13,920.25