Finding the Fourth Proportional to 16,686.22, 23,026.11 and 9,131.08

Step by Step Solution

1. Step 1: Write the proportion equation
   16,686.22 : 23,026.11 = 9,131.08 : x
2. Step 2: Convert to fraction form
   16,686.22/23,026.11 = 9,131.08/x
3. Step 3: Cross multiply
   16,686.22x = 23,026.11 × 9,131.08
4. Step 4: Simplify right side
   16,686.22x = 210,253,160.69
5. Step 5: Solve for x
   x = 210,253,160.69/16,686.22
6. Step 6: Final answer
   x = 12,600.41