Finding the Fourth Proportional to 9,864.50, 14,726.48 and 9,518.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,864.50 : 14,726.48 = 9,518.49 : x
2. Step 2: Convert to fraction form
   9,864.50/14,726.48 = 9,518.49/x
3. Step 3: Cross multiply
   9,864.50x = 14,726.48 × 9,518.49
4. Step 4: Simplify right side
   9,864.50x = 140,173,805.02
5. Step 5: Solve for x
   x = 140,173,805.02/9,864.50
6. Step 6: Final answer
   x = 14,209.93