Finding the Fourth Proportional to 13,401.17, 18,494.24 and 7,432.49

Step by Step Solution

1. Step 1: Write the proportion equation
   13,401.17 : 18,494.24 = 7,432.49 : x
2. Step 2: Convert to fraction form
   13,401.17/18,494.24 = 7,432.49/x
3. Step 3: Cross multiply
   13,401.17x = 18,494.24 × 7,432.49
4. Step 4: Simplify right side
   13,401.17x = 137,458,124.22
5. Step 5: Solve for x
   x = 137,458,124.22/13,401.17
6. Step 6: Final answer
   x = 10,257.17