Finding the Fourth Proportional to 8,175.96, 12,255.42 and 3,789.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,175.96 : 12,255.42 = 3,789.80 : x
2. Step 2: Convert to fraction form
   8,175.96/12,255.42 = 3,789.80/x
3. Step 3: Cross multiply
   8,175.96x = 12,255.42 × 3,789.80
4. Step 4: Simplify right side
   8,175.96x = 46,445,590.72
5. Step 5: Solve for x
   x = 46,445,590.72/8,175.96
6. Step 6: Final answer
   x = 5,680.75