Finding the Fourth Proportional to 22,142.48, 33,218.56 and 6,561.32

Step by Step Solution

1. Step 1: Write the proportion equation
   22,142.48 : 33,218.56 = 6,561.32 : x
2. Step 2: Convert to fraction form
   22,142.48/33,218.56 = 6,561.32/x
3. Step 3: Cross multiply
   22,142.48x = 33,218.56 × 6,561.32
4. Step 4: Simplify right side
   22,142.48x = 217,957,602.10
5. Step 5: Solve for x
   x = 217,957,602.10/22,142.48
6. Step 6: Final answer
   x = 9,843.41