Finding the Fourth Proportional to 22,057.18, 33,090.63 and 12,210.82

Step by Step Solution

1. Step 1: Write the proportion equation
   22,057.18 : 33,090.63 = 12,210.82 : x
2. Step 2: Convert to fraction form
   22,057.18/33,090.63 = 12,210.82/x
3. Step 3: Cross multiply
   22,057.18x = 33,090.63 × 12,210.82
4. Step 4: Simplify right side
   22,057.18x = 404,063,726.62
5. Step 5: Solve for x
   x = 404,063,726.62/22,057.18
6. Step 6: Final answer
   x = 18,318.92