Finding the Fourth Proportional to 21,886,255.05, 30,206,705.99 and 14,818,642.89

Step by Step Solution

1. Step 1: Write the proportion equation
   21,886,255.05 : 30,206,705.99 = 14,818,642.89 : x
2. Step 2: Convert to fraction form
   21,886,255.05/30,206,705.99 = 14,818,642.89/x
3. Step 3: Cross multiply
   21,886,255.05x = 30,206,705.99 × 14,818,642.89
4. Step 4: Simplify right side
   21,886,255.05x = 447,622,388,874,940.69
5. Step 5: Solve for x
   x = 447,622,388,874,940.69/21,886,255.05
6. Step 6: Final answer
   x = 20,452,214.77