Finding the Fourth Proportional to 16,610.98, 23,081.86 and 16,401.39

Step by Step Solution

1. Step 1: Write the proportion equation
   16,610.98 : 23,081.86 = 16,401.39 : x
2. Step 2: Convert to fraction form
   16,610.98/23,081.86 = 16,401.39/x
3. Step 3: Cross multiply
   16,610.98x = 23,081.86 × 16,401.39
4. Step 4: Simplify right side
   16,610.98x = 378,574,587.79
5. Step 5: Solve for x
   x = 378,574,587.79/16,610.98
6. Step 6: Final answer
   x = 22,790.62