Finding the Fourth Proportional to 23,164.17, 31,966.43 and 12,553.80

Step by Step Solution

1. Step 1: Write the proportion equation
   23,164.17 : 31,966.43 = 12,553.80 : x
2. Step 2: Convert to fraction form
   23,164.17/31,966.43 = 12,553.80/x
3. Step 3: Cross multiply
   23,164.17x = 31,966.43 × 12,553.80
4. Step 4: Simplify right side
   23,164.17x = 401,300,106.17
5. Step 5: Solve for x
   x = 401,300,106.17/23,164.17
6. Step 6: Final answer
   x = 17,324.17