Finding the Fourth Proportional to 12,050.69, 18,069.42 and 3,728.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,050.69 : 18,069.42 = 3,728.39 : x
2. Step 2: Convert to fraction form
   12,050.69/18,069.42 = 3,728.39/x
3. Step 3: Cross multiply
   12,050.69x = 18,069.42 × 3,728.39
4. Step 4: Simplify right side
   12,050.69x = 67,369,844.83
5. Step 5: Solve for x
   x = 67,369,844.83/12,050.69
6. Step 6: Final answer
   x = 5,590.54