Finding the Fourth Proportional to 13,727.45, 18,943.94 and 7,439.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,727.45 : 18,943.94 = 7,439.83 : x
2. Step 2: Convert to fraction form
   13,727.45/18,943.94 = 7,439.83/x
3. Step 3: Cross multiply
   13,727.45x = 18,943.94 × 7,439.83
4. Step 4: Simplify right side
   13,727.45x = 140,939,664.37
5. Step 5: Solve for x
   x = 140,939,664.37/13,727.45
6. Step 6: Final answer
   x = 10,266.99