Finding the Fourth Proportional to 21,647,435.00, 29,862,134.33 and 13,384,856.07

Step by Step Solution

1. Step 1: Write the proportion equation
   21,647,435.00 : 29,862,134.33 = 13,384,856.07 : x
2. Step 2: Convert to fraction form
   21,647,435.00/29,862,134.33 = 13,384,856.07/x
3. Step 3: Cross multiply
   21,647,435.00x = 29,862,134.33 × 13,384,856.07
4. Step 4: Simplify right side
   21,647,435.00x = 399,700,369,883,131.62
5. Step 5: Solve for x
   x = 399,700,369,883,131.62/21,647,435.00
6. Step 6: Final answer
   x = 18,464,098.40