Finding the Fourth Proportional to 13,369.82, 18,449.70 and 7,401.38

Step by Step Solution

1. Step 1: Write the proportion equation
   13,369.82 : 18,449.70 = 7,401.38 : x
2. Step 2: Convert to fraction form
   13,369.82/18,449.70 = 7,401.38/x
3. Step 3: Cross multiply
   13,369.82x = 18,449.70 × 7,401.38
4. Step 4: Simplify right side
   13,369.82x = 136,553,240.59
5. Step 5: Solve for x
   x = 136,553,240.59/13,369.82
6. Step 6: Final answer
   x = 10,213.54