Finding the Fourth Proportional to 21,061.62, 29,064.06 and 11,629.98

Step by Step Solution

1. Step 1: Write the proportion equation
   21,061.62 : 29,064.06 = 11,629.98 : x
2. Step 2: Convert to fraction form
   21,061.62/29,064.06 = 11,629.98/x
3. Step 3: Cross multiply
   21,061.62x = 29,064.06 × 11,629.98
4. Step 4: Simplify right side
   21,061.62x = 338,014,436.52
5. Step 5: Solve for x
   x = 338,014,436.52/21,061.62
6. Step 6: Final answer
   x = 16,048.83