Finding the Fourth Proportional to 13,369.62, 18,449.81 and 7,704.03

Step by Step Solution

1. Step 1: Write the proportion equation
   13,369.62 : 18,449.81 = 7,704.03 : x
2. Step 2: Convert to fraction form
   13,369.62/18,449.81 = 7,704.03/x
3. Step 3: Cross multiply
   13,369.62x = 18,449.81 × 7,704.03
4. Step 4: Simplify right side
   13,369.62x = 142,137,889.73
5. Step 5: Solve for x
   x = 142,137,889.73/13,369.62
6. Step 6: Final answer
   x = 10,631.41