Finding the Fourth Proportional to 16,729.82, 23,086.86 and 9,176.30

Step by Step Solution

1. Step 1: Write the proportion equation
   16,729.82 : 23,086.86 = 9,176.30 : x
2. Step 2: Convert to fraction form
   16,729.82/23,086.86 = 9,176.30/x
3. Step 3: Cross multiply
   16,729.82x = 23,086.86 × 9,176.30
4. Step 4: Simplify right side
   16,729.82x = 211,851,953.42
5. Step 5: Solve for x
   x = 211,851,953.42/16,729.82
6. Step 6: Final answer
   x = 12,663.13