Finding the Fourth Proportional to 10,221.29, 14,105.79 and 5,745.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,221.29 : 14,105.79 = 5,745.03 : x
2. Step 2: Convert to fraction form
   10,221.29/14,105.79 = 5,745.03/x
3. Step 3: Cross multiply
   10,221.29x = 14,105.79 × 5,745.03
4. Step 4: Simplify right side
   10,221.29x = 81,038,186.72
5. Step 5: Solve for x
   x = 81,038,186.72/10,221.29
6. Step 6: Final answer
   x = 7,928.37