Finding the Fourth Proportional to 9,939, 14,909.31 and 3,013.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,939 : 14,909.31 = 3,013.50 : x
2. Step 2: Convert to fraction form
   9,939/14,909.31 = 3,013.50/x
3. Step 3: Cross multiply
   9,939x = 14,909.31 × 3,013.50
4. Step 4: Simplify right side
   9,939x = 44,929,205.69
5. Step 5: Solve for x
   x = 44,929,205.69/9,939
6. Step 6: Final answer
   x = 4,520.50