Finding the Fourth Proportional to 28,434.72, 39,241.82 and 16,498.05

Step by Step Solution

1. Step 1: Write the proportion equation
   28,434.72 : 39,241.82 = 16,498.05 : x
2. Step 2: Convert to fraction form
   28,434.72/39,241.82 = 16,498.05/x
3. Step 3: Cross multiply
   28,434.72x = 39,241.82 × 16,498.05
4. Step 4: Simplify right side
   28,434.72x = 647,413,508.45
5. Step 5: Solve for x
   x = 647,413,508.45/28,434.72
6. Step 6: Final answer
   x = 22,768.42