Finding the Fourth Proportional to 21,597.92, 32,323.73 and 13,283.21

Step by Step Solution

1. Step 1: Write the proportion equation
   21,597.92 : 32,323.73 = 13,283.21 : x
2. Step 2: Convert to fraction form
   21,597.92/32,323.73 = 13,283.21/x
3. Step 3: Cross multiply
   21,597.92x = 32,323.73 × 13,283.21
4. Step 4: Simplify right side
   21,597.92x = 429,362,665.54
5. Step 5: Solve for x
   x = 429,362,665.54/21,597.92
6. Step 6: Final answer
   x = 19,879.82