Finding the Fourth Proportional to 21,571.72, 32,359.20 and 5,990.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,571.72 : 32,359.20 = 5,990.56 : x
2. Step 2: Convert to fraction form
   21,571.72/32,359.20 = 5,990.56/x
3. Step 3: Cross multiply
   21,571.72x = 32,359.20 × 5,990.56
4. Step 4: Simplify right side
   21,571.72x = 193,849,729.15
5. Step 5: Solve for x
   x = 193,849,729.15/21,571.72
6. Step 6: Final answer
   x = 8,986.29