Finding the Fourth Proportional to 13,727.55, 18,944.01 and 7,439.93

Step by Step Solution

1. Step 1: Write the proportion equation
   13,727.55 : 18,944.01 = 7,439.93 : x
2. Step 2: Convert to fraction form
   13,727.55/18,944.01 = 7,439.93/x
3. Step 3: Cross multiply
   13,727.55x = 18,944.01 × 7,439.93
4. Step 4: Simplify right side
   13,727.55x = 140,942,108.32
5. Step 5: Solve for x
   x = 140,942,108.32/13,727.55
6. Step 6: Final answer
   x = 10,267.10