Finding the Fourth Proportional to 13,066.62, 18,032.42 and 7,401.63

Step by Step Solution

1. Step 1: Write the proportion equation
   13,066.62 : 18,032.42 = 7,401.63 : x
2. Step 2: Convert to fraction form
   13,066.62/18,032.42 = 7,401.63/x
3. Step 3: Cross multiply
   13,066.62x = 18,032.42 × 7,401.63
4. Step 4: Simplify right side
   13,066.62x = 133,469,285.54
5. Step 5: Solve for x
   x = 133,469,285.54/13,066.62
6. Step 6: Final answer
   x = 10,214.53