Finding the Fourth Proportional to 21,016.82, 29,002.05 and 12,063.74

Step by Step Solution

1. Step 1: Write the proportion equation
   21,016.82 : 29,002.05 = 12,063.74 : x
2. Step 2: Convert to fraction form
   21,016.82/29,002.05 = 12,063.74/x
3. Step 3: Cross multiply
   21,016.82x = 29,002.05 × 12,063.74
4. Step 4: Simplify right side
   21,016.82x = 349,873,045.66
5. Step 5: Solve for x
   x = 349,873,045.66/21,016.82
6. Step 6: Final answer
   x = 16,647.29