Finding the Fourth Proportional to 22,141.72, 33,206.10 and 8,287.48

Step by Step Solution

1. Step 1: Write the proportion equation
   22,141.72 : 33,206.10 = 8,287.48 : x
2. Step 2: Convert to fraction form
   22,141.72/33,206.10 = 8,287.48/x
3. Step 3: Cross multiply
   22,141.72x = 33,206.10 × 8,287.48
4. Step 4: Simplify right side
   22,141.72x = 275,194,889.63
5. Step 5: Solve for x
   x = 275,194,889.63/22,141.72
6. Step 6: Final answer
   x = 12,428.79