Finding the Fourth Proportional to 21,956,453.97, 30,300,086.99 and 12,167,061.63

Step by Step Solution

1. Step 1: Write the proportion equation
   21,956,453.97 : 30,300,086.99 = 12,167,061.63 : x
2. Step 2: Convert to fraction form
   21,956,453.97/30,300,086.99 = 12,167,061.63/x
3. Step 3: Cross multiply
   21,956,453.97x = 30,300,086.99 × 12,167,061.63
4. Step 4: Simplify right side
   21,956,453.97x = 368,663,025,888,921.56
5. Step 5: Solve for x
   x = 368,663,025,888,921.56/21,956,453.97
6. Step 6: Final answer
   x = 16,790,645.09