Finding the Fourth Proportional to 13,677.83, 20,514.91 and 3,816.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,677.83 : 20,514.91 = 3,816.28 : x
2. Step 2: Convert to fraction form
   13,677.83/20,514.91 = 3,816.28/x
3. Step 3: Cross multiply
   13,677.83x = 20,514.91 × 3,816.28
4. Step 4: Simplify right side
   13,677.83x = 78,290,640.73
5. Step 5: Solve for x
   x = 78,290,640.73/13,677.83
6. Step 6: Final answer
   x = 5,723.91