Finding the Fourth Proportional to 8,147.69, 12,221.78 and 2,303.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,147.69 : 12,221.78 = 2,303.69 : x
2. Step 2: Convert to fraction form
   8,147.69/12,221.78 = 2,303.69/x
3. Step 3: Cross multiply
   8,147.69x = 12,221.78 × 2,303.69
4. Step 4: Simplify right side
   8,147.69x = 28,155,180.85
5. Step 5: Solve for x
   x = 28,155,180.85/8,147.69
6. Step 6: Final answer
   x = 3,455.60