Finding the Fourth Proportional to 22,109.34, 30,512.25 and 12,680.94

Step by Step Solution

1. Step 1: Write the proportion equation
   22,109.34 : 30,512.25 = 12,680.94 : x
2. Step 2: Convert to fraction form
   22,109.34/30,512.25 = 12,680.94/x
3. Step 3: Cross multiply
   22,109.34x = 30,512.25 × 12,680.94
4. Step 4: Simplify right side
   22,109.34x = 386,924,011.52
5. Step 5: Solve for x
   x = 386,924,011.52/22,109.34
6. Step 6: Final answer
   x = 17,500.48