Finding the Fourth Proportional to 22,389.06, 30,896.25 and 12,179.76

Step by Step Solution

1. Step 1: Write the proportion equation
   22,389.06 : 30,896.25 = 12,179.76 : x
2. Step 2: Convert to fraction form
   22,389.06/30,896.25 = 12,179.76/x
3. Step 3: Cross multiply
   22,389.06x = 30,896.25 × 12,179.76
4. Step 4: Simplify right side
   22,389.06x = 376,308,909.90
5. Step 5: Solve for x
   x = 376,308,909.90/22,389.06
6. Step 6: Final answer
   x = 16,807.71