Finding the Fourth Proportional to 22,009.76, 30,373.32 and 12,578.24

Step by Step Solution

1. Step 1: Write the proportion equation
   22,009.76 : 30,373.32 = 12,578.24 : x
2. Step 2: Convert to fraction form
   22,009.76/30,373.32 = 12,578.24/x
3. Step 3: Cross multiply
   22,009.76x = 30,373.32 × 12,578.24
4. Step 4: Simplify right side
   22,009.76x = 382,042,908.56
5. Step 5: Solve for x
   x = 382,042,908.56/22,009.76
6. Step 6: Final answer
   x = 17,357.89