Finding the Fourth Proportional to 8,769.44, 13,152.74 and 3,221.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,769.44 : 13,152.74 = 3,221.42 : x
2. Step 2: Convert to fraction form
   8,769.44/13,152.74 = 3,221.42/x
3. Step 3: Cross multiply
   8,769.44x = 13,152.74 × 3,221.42
4. Step 4: Simplify right side
   8,769.44x = 42,370,499.69
5. Step 5: Solve for x
   x = 42,370,499.69/8,769.44
6. Step 6: Final answer
   x = 4,831.61