Finding the Fourth Proportional to 21,016.04, 29,002.25 and 12,063.31

Step by Step Solution

1. Step 1: Write the proportion equation
   21,016.04 : 29,002.25 = 12,063.31 : x
2. Step 2: Convert to fraction form
   21,016.04/29,002.25 = 12,063.31/x
3. Step 3: Cross multiply
   21,016.04x = 29,002.25 × 12,063.31
4. Step 4: Simplify right side
   21,016.04x = 349,863,090.10
5. Step 5: Solve for x
   x = 349,863,090.10/21,016.04
6. Step 6: Final answer
   x = 16,647.44