Finding the Fourth Proportional to 13,401.96, 18,493.89 and 7,433.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,401.96 : 18,493.89 = 7,433.28 : x
2. Step 2: Convert to fraction form
   13,401.96/18,493.89 = 7,433.28/x
3. Step 3: Cross multiply
   13,401.96x = 18,493.89 × 7,433.28
4. Step 4: Simplify right side
   13,401.96x = 137,470,262.66
5. Step 5: Solve for x
   x = 137,470,262.66/13,401.96
6. Step 6: Final answer
   x = 10,257.47