Finding the Fourth Proportional to 15,978.67, 22,049.75 and 8,809.83

Step by Step Solution

1. Step 1: Write the proportion equation
   15,978.67 : 22,049.75 = 8,809.83 : x
2. Step 2: Convert to fraction form
   15,978.67/22,049.75 = 8,809.83/x
3. Step 3: Cross multiply
   15,978.67x = 22,049.75 × 8,809.83
4. Step 4: Simplify right side
   15,978.67x = 194,254,571.07
5. Step 5: Solve for x
   x = 194,254,571.07/15,978.67
6. Step 6: Final answer
   x = 12,157.12