Finding the Fourth Proportional to 13,401.30, 18,493.04 and 7,432.54

Step by Step Solution

1. Step 1: Write the proportion equation
   13,401.30 : 18,493.04 = 7,432.54 : x
2. Step 2: Convert to fraction form
   13,401.30/18,493.04 = 7,432.54/x
3. Step 3: Cross multiply
   13,401.30x = 18,493.04 × 7,432.54
4. Step 4: Simplify right side
   13,401.30x = 137,450,259.52
5. Step 5: Solve for x
   x = 137,450,259.52/13,401.30
6. Step 6: Final answer
   x = 10,256.49