Finding the Fourth Proportional to 21,474.27, 29,634.39 and 12,042.83

Step by Step Solution

1. Step 1: Write the proportion equation
   21,474.27 : 29,634.39 = 12,042.83 : x
2. Step 2: Convert to fraction form
   21,474.27/29,634.39 = 12,042.83/x
3. Step 3: Cross multiply
   21,474.27x = 29,634.39 × 12,042.83
4. Step 4: Simplify right side
   21,474.27x = 356,881,995.01
5. Step 5: Solve for x
   x = 356,881,995.01/21,474.27
6. Step 6: Final answer
   x = 16,619.05