Finding the Fourth Proportional to 21,647,446.94, 29,862,150.99 and 13,384,868.06

Step by Step Solution

1. Step 1: Write the proportion equation
   21,647,446.94 : 29,862,150.99 = 13,384,868.06 : x
2. Step 2: Convert to fraction form
   21,647,446.94/29,862,150.99 = 13,384,868.06/x
3. Step 3: Cross multiply
   21,647,446.94x = 29,862,150.99 × 13,384,868.06
4. Step 4: Simplify right side
   21,647,446.94x = 399,700,950,988,948.38
5. Step 5: Solve for x
   x = 399,700,950,988,948.38/21,647,446.94
6. Step 6: Final answer
   x = 18,464,115.06