Finding the Fourth Proportional to 22,280.82, 30,748.31 and 12,210.14

Step by Step Solution

1. Step 1: Write the proportion equation
   22,280.82 : 30,748.31 = 12,210.14 : x
2. Step 2: Convert to fraction form
   22,280.82/30,748.31 = 12,210.14/x
3. Step 3: Cross multiply
   22,280.82x = 30,748.31 × 12,210.14
4. Step 4: Simplify right side
   22,280.82x = 375,441,231.47
5. Step 5: Solve for x
   x = 375,441,231.47/22,280.82
6. Step 6: Final answer
   x = 16,850.42