Finding the Fourth Proportional to 14,127.12, 19,494.45 and 7,839

Step by Step Solution

1. Step 1: Write the proportion equation
   14,127.12 : 19,494.45 = 7,839 : x
2. Step 2: Convert to fraction form
   14,127.12/19,494.45 = 7,839/x
3. Step 3: Cross multiply
   14,127.12x = 19,494.45 × 7,839
4. Step 4: Simplify right side
   14,127.12x = 152,816,993.55
5. Step 5: Solve for x
   x = 152,816,993.55/14,127.12
6. Step 6: Final answer
   x = 10,817.28