Finding the Fourth Proportional to 21,061.07, 29,064.17 and 11,629.63

Step by Step Solution

1. Step 1: Write the proportion equation
   21,061.07 : 29,064.17 = 11,629.63 : x
2. Step 2: Convert to fraction form
   21,061.07/29,064.17 = 11,629.63/x
3. Step 3: Cross multiply
   21,061.07x = 29,064.17 × 11,629.63
4. Step 4: Simplify right side
   21,061.07x = 338,005,412.55
5. Step 5: Solve for x
   x = 338,005,412.55/21,061.07
6. Step 6: Final answer
   x = 16,048.83