Finding the Fourth Proportional to 22,358, 30,854.16 and 12,422

Step by Step Solution

1. Step 1: Write the proportion equation
   22,358 : 30,854.16 = 12,422 : x
2. Step 2: Convert to fraction form
   22,358/30,854.16 = 12,422/x
3. Step 3: Cross multiply
   22,358x = 30,854.16 × 12,422
4. Step 4: Simplify right side
   22,358x = 383,270,375.52
5. Step 5: Solve for x
   x = 383,270,375.52/22,358
6. Step 6: Final answer
   x = 17,142.43