Finding the Fourth Proportional to 16,823.08, 25,234.72 and 5,136.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,823.08 : 25,234.72 = 5,136.30 : x
2. Step 2: Convert to fraction form
   16,823.08/25,234.72 = 5,136.30/x
3. Step 3: Cross multiply
   16,823.08x = 25,234.72 × 5,136.30
4. Step 4: Simplify right side
   16,823.08x = 129,613,092.34
5. Step 5: Solve for x
   x = 129,613,092.34/16,823.08
6. Step 6: Final answer
   x = 7,704.48