Finding the Fourth Proportional to 22,050.43, 30,429.47 and 11,978.79

Step by Step Solution

1. Step 1: Write the proportion equation
   22,050.43 : 30,429.47 = 11,978.79 : x
2. Step 2: Convert to fraction form
   22,050.43/30,429.47 = 11,978.79/x
3. Step 3: Cross multiply
   22,050.43x = 30,429.47 × 11,978.79
4. Step 4: Simplify right side
   22,050.43x = 364,508,018.90
5. Step 5: Solve for x
   x = 364,508,018.90/22,050.43
6. Step 6: Final answer
   x = 16,530.66