Finding the Fourth Proportional to 28,676.79, 39,567.56 and 16,100.73

Step by Step Solution

1. Step 1: Write the proportion equation
   28,676.79 : 39,567.56 = 16,100.73 : x
2. Step 2: Convert to fraction form
   28,676.79/39,567.56 = 16,100.73/x
3. Step 3: Cross multiply
   28,676.79x = 39,567.56 × 16,100.73
4. Step 4: Simplify right side
   28,676.79x = 637,066,519.82
5. Step 5: Solve for x
   x = 637,066,519.82/28,676.79
6. Step 6: Final answer
   x = 22,215.41