Finding the Fourth Proportional to 21,061.14, 29,063.99 and 11,629.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,061.14 : 29,063.99 = 11,629.50 : x
2. Step 2: Convert to fraction form
   21,061.14/29,063.99 = 11,629.50/x
3. Step 3: Cross multiply
   21,061.14x = 29,063.99 × 11,629.50
4. Step 4: Simplify right side
   21,061.14x = 337,999,613.56
5. Step 5: Solve for x
   x = 337,999,613.56/21,061.14
6. Step 6: Final answer
   x = 16,048.50