Finding the Fourth Proportional to 16,739.55, 23,100.76 and 9,185.66

Step by Step Solution

1. Step 1: Write the proportion equation
   16,739.55 : 23,100.76 = 9,185.66 : x
2. Step 2: Convert to fraction form
   16,739.55/23,100.76 = 9,185.66/x
3. Step 3: Cross multiply
   16,739.55x = 23,100.76 × 9,185.66
4. Step 4: Simplify right side
   16,739.55x = 212,195,761.89
5. Step 5: Solve for x
   x = 212,195,761.89/16,739.55
6. Step 6: Final answer
   x = 12,676.32