Finding the Fourth Proportional to 13,729.02, 18,945.54 and 7,441.26

Step by Step Solution

1. Step 1: Write the proportion equation
   13,729.02 : 18,945.54 = 7,441.26 : x
2. Step 2: Convert to fraction form
   13,729.02/18,945.54 = 7,441.26/x
3. Step 3: Cross multiply
   13,729.02x = 18,945.54 × 7,441.26
4. Step 4: Simplify right side
   13,729.02x = 140,978,688.98
5. Step 5: Solve for x
   x = 140,978,688.98/13,729.02
6. Step 6: Final answer
   x = 10,268.66