Finding the Fourth Proportional to 15,749.34, 21,733.83 and 8,676.42

Step by Step Solution

1. Step 1: Write the proportion equation
   15,749.34 : 21,733.83 = 8,676.42 : x
2. Step 2: Convert to fraction form
   15,749.34/21,733.83 = 8,676.42/x
3. Step 3: Cross multiply
   15,749.34x = 21,733.83 × 8,676.42
4. Step 4: Simplify right side
   15,749.34x = 188,571,837.29
5. Step 5: Solve for x
   x = 188,571,837.29/15,749.34
6. Step 6: Final answer
   x = 11,973.32