Finding the Fourth Proportional to 13,369.81, 18,450.63 and 7,401.89

Step by Step Solution

1. Step 1: Write the proportion equation
   13,369.81 : 18,450.63 = 7,401.89 : x
2. Step 2: Convert to fraction form
   13,369.81/18,450.63 = 7,401.89/x
3. Step 3: Cross multiply
   13,369.81x = 18,450.63 × 7,401.89
4. Step 4: Simplify right side
   13,369.81x = 136,569,533.69
5. Step 5: Solve for x
   x = 136,569,533.69/13,369.81
6. Step 6: Final answer
   x = 10,214.77