Finding the Fourth Proportional to 23,146.80, 31,942.53 and 12,536.43

Step by Step Solution

1. Step 1: Write the proportion equation
   23,146.80 : 31,942.53 = 12,536.43 : x
2. Step 2: Convert to fraction form
   23,146.80/31,942.53 = 12,536.43/x
3. Step 3: Cross multiply
   23,146.80x = 31,942.53 × 12,536.43
4. Step 4: Simplify right side
   23,146.80x = 400,445,291.37
5. Step 5: Solve for x
   x = 400,445,291.37/23,146.80
6. Step 6: Final answer
   x = 17,300.24