Finding the Fourth Proportional to 21,978,729.33, 30,332,509.79 and 12,192,326.34

Step by Step Solution

1. Step 1: Write the proportion equation
   21,978,729.33 : 30,332,509.79 = 12,192,326.34 : x
2. Step 2: Convert to fraction form
   21,978,729.33/30,332,509.79 = 12,192,326.34/x
3. Step 3: Cross multiply
   21,978,729.33x = 30,332,509.79 × 12,192,326.34
4. Step 4: Simplify right side
   21,978,729.33x = 369,823,858,070,924.88
5. Step 5: Solve for x
   x = 369,823,858,070,924.88/21,978,729.33
6. Step 6: Final answer
   x = 16,826,443.99