Finding the Fourth Proportional to 22,278.42, 30,744.81 and 12,847.59

Step by Step Solution

1. Step 1: Write the proportion equation
   22,278.42 : 30,744.81 = 12,847.59 : x
2. Step 2: Convert to fraction form
   22,278.42/30,744.81 = 12,847.59/x
3. Step 3: Cross multiply
   22,278.42x = 30,744.81 × 12,847.59
4. Step 4: Simplify right side
   22,278.42x = 394,996,713.51
5. Step 5: Solve for x
   x = 394,996,713.51/22,278.42
6. Step 6: Final answer
   x = 17,730.01