Finding the Fourth Proportional to 21,019.83, 29,007.54 and 11,588.73

Step by Step Solution

1. Step 1: Write the proportion equation
   21,019.83 : 29,007.54 = 11,588.73 : x
2. Step 2: Convert to fraction form
   21,019.83/29,007.54 = 11,588.73/x
3. Step 3: Cross multiply
   21,019.83x = 29,007.54 × 11,588.73
4. Step 4: Simplify right side
   21,019.83x = 336,160,549.02
5. Step 5: Solve for x
   x = 336,160,549.02/21,019.83
6. Step 6: Final answer
   x = 15,992.54