Finding the Fourth Proportional to 13,401.44, 18,493.30 and 7,433.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,401.44 : 18,493.30 = 7,433.12 : x
2. Step 2: Convert to fraction form
   13,401.44/18,493.30 = 7,433.12/x
3. Step 3: Cross multiply
   13,401.44x = 18,493.30 × 7,433.12
4. Step 4: Simplify right side
   13,401.44x = 137,462,918.10
5. Step 5: Solve for x
   x = 137,462,918.10/13,401.44
6. Step 6: Final answer
   x = 10,257.32