Finding the Fourth Proportional to 13,728.96, 18,945.95 and 7,441.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,728.96 : 18,945.95 = 7,441.34 : x
2. Step 2: Convert to fraction form
   13,728.96/18,945.95 = 7,441.34/x
3. Step 3: Cross multiply
   13,728.96x = 18,945.95 × 7,441.34
4. Step 4: Simplify right side
   13,728.96x = 140,983,123.64
5. Step 5: Solve for x
   x = 140,983,123.64/13,728.96
6. Step 6: Final answer
   x = 10,269.03