Finding the Fourth Proportional to 8,419.25, 12,631.20 and 3,675.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,419.25 : 12,631.20 = 3,675.81 : x
2. Step 2: Convert to fraction form
   8,419.25/12,631.20 = 3,675.81/x
3. Step 3: Cross multiply
   8,419.25x = 12,631.20 × 3,675.81
4. Step 4: Simplify right side
   8,419.25x = 46,429,891.27
5. Step 5: Solve for x
   x = 46,429,891.27/8,419.25
6. Step 6: Final answer
   x = 5,514.73