Finding the Fourth Proportional to 13,401.60, 18,494.27 and 7,433.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,401.60 : 18,494.27 = 7,433.82 : x
2. Step 2: Convert to fraction form
   13,401.60/18,494.27 = 7,433.82/x
3. Step 3: Cross multiply
   13,401.60x = 18,494.27 × 7,433.82
4. Step 4: Simplify right side
   13,401.60x = 137,483,037.04
5. Step 5: Solve for x
   x = 137,483,037.04/13,401.60
6. Step 6: Final answer
   x = 10,258.70