Finding the Fourth Proportional to 13,401.96, 18,493.36 and 7,432.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,401.96 : 18,493.36 = 7,432.24 : x
2. Step 2: Convert to fraction form
   13,401.96/18,493.36 = 7,432.24/x
3. Step 3: Cross multiply
   13,401.96x = 18,493.36 × 7,432.24
4. Step 4: Simplify right side
   13,401.96x = 137,447,089.93
5. Step 5: Solve for x
   x = 137,447,089.93/13,401.96
6. Step 6: Final answer
   x = 10,255.75