Finding the Fourth Proportional to 21,445, 29,594.10 and 12,013.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,445 : 29,594.10 = 12,013.56 : x
2. Step 2: Convert to fraction form
   21,445/29,594.10 = 12,013.56/x
3. Step 3: Cross multiply
   21,445x = 29,594.10 × 12,013.56
4. Step 4: Simplify right side
   21,445x = 355,530,496.00
5. Step 5: Solve for x
   x = 355,530,496.00/21,445
6. Step 6: Final answer
   x = 16,578.71