Finding the Fourth Proportional to 15,016.79, 20,723.04 and 8,302.10

Step by Step Solution

1. Step 1: Write the proportion equation
   15,016.79 : 20,723.04 = 8,302.10 : x
2. Step 2: Convert to fraction form
   15,016.79/20,723.04 = 8,302.10/x
3. Step 3: Cross multiply
   15,016.79x = 20,723.04 × 8,302.10
4. Step 4: Simplify right side
   15,016.79x = 172,044,646.77
5. Step 5: Solve for x
   x = 172,044,646.77/15,016.79
6. Step 6: Final answer
   x = 11,456.82