Finding the Fourth Proportional to 12,147.69, 18,223.35 and 3,826.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,147.69 : 18,223.35 = 3,826.83 : x
2. Step 2: Convert to fraction form
   12,147.69/18,223.35 = 3,826.83/x
3. Step 3: Cross multiply
   12,147.69x = 18,223.35 × 3,826.83
4. Step 4: Simplify right side
   12,147.69x = 69,737,662.48
5. Step 5: Solve for x
   x = 69,737,662.48/12,147.69
6. Step 6: Final answer
   x = 5,740.82