Finding the Fourth Proportional to 22,372, 30,873.38 and 12,436

Step by Step Solution

1. Step 1: Write the proportion equation
   22,372 : 30,873.38 = 12,436 : x
2. Step 2: Convert to fraction form
   22,372/30,873.38 = 12,436/x
3. Step 3: Cross multiply
   22,372x = 30,873.38 × 12,436
4. Step 4: Simplify right side
   22,372x = 383,941,353.68
5. Step 5: Solve for x
   x = 383,941,353.68/22,372
6. Step 6: Final answer
   x = 17,161.69