Finding the Fourth Proportional to 21,002.93, 28,982.86 and 12,049.59

Step by Step Solution

1. Step 1: Write the proportion equation
   21,002.93 : 28,982.86 = 12,049.59 : x
2. Step 2: Convert to fraction form
   21,002.93/28,982.86 = 12,049.59/x
3. Step 3: Cross multiply
   21,002.93x = 28,982.86 × 12,049.59
4. Step 4: Simplify right side
   21,002.93x = 349,231,726.37
5. Step 5: Solve for x
   x = 349,231,726.37/21,002.93
6. Step 6: Final answer
   x = 16,627.76