Finding the Fourth Proportional to 22,196.88, 30,631.50 and 12,125.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,196.88 : 30,631.50 = 12,125.31 : x
2. Step 2: Convert to fraction form
   22,196.88/30,631.50 = 12,125.31/x
3. Step 3: Cross multiply
   22,196.88x = 30,631.50 × 12,125.31
4. Step 4: Simplify right side
   22,196.88x = 371,416,433.27
5. Step 5: Solve for x
   x = 371,416,433.27/22,196.88
6. Step 6: Final answer
   x = 16,732.82