Finding the Fourth Proportional to 13,401.86, 18,495.16 and 7,433.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,401.86 : 18,495.16 = 7,433.12 : x
2. Step 2: Convert to fraction form
   13,401.86/18,495.16 = 7,433.12/x
3. Step 3: Cross multiply
   13,401.86x = 18,495.16 × 7,433.12
4. Step 4: Simplify right side
   13,401.86x = 137,476,743.70
5. Step 5: Solve for x
   x = 137,476,743.70/13,401.86
6. Step 6: Final answer
   x = 10,258.03