Finding the Fourth Proportional to 22,819.69, 34,231.56 and 8,783.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,819.69 : 34,231.56 = 8,783.20 : x
2. Step 2: Convert to fraction form
   22,819.69/34,231.56 = 8,783.20/x
3. Step 3: Cross multiply
   22,819.69x = 34,231.56 × 8,783.20
4. Step 4: Simplify right side
   22,819.69x = 300,662,637.79
5. Step 5: Solve for x
   x = 300,662,637.79/22,819.69
6. Step 6: Final answer
   x = 13,175.58