Finding the Fourth Proportional to 22,281.68, 30,748.72 and 12,072.73

Step by Step Solution

1. Step 1: Write the proportion equation
   22,281.68 : 30,748.72 = 12,072.73 : x
2. Step 2: Convert to fraction form
   22,281.68/30,748.72 = 12,072.73/x
3. Step 3: Cross multiply
   22,281.68x = 30,748.72 × 12,072.73
4. Step 4: Simplify right side
   22,281.68x = 371,220,994.41
5. Step 5: Solve for x
   x = 371,220,994.41/22,281.68
6. Step 6: Final answer
   x = 16,660.37