Finding the Fourth Proportional to 23,145.38, 31,940.58 and 12,535.03

Step by Step Solution

1. Step 1: Write the proportion equation
   23,145.38 : 31,940.58 = 12,535.03 : x
2. Step 2: Convert to fraction form
   23,145.38/31,940.58 = 12,535.03/x
3. Step 3: Cross multiply
   23,145.38x = 31,940.58 × 12,535.03
4. Step 4: Simplify right side
   23,145.38x = 400,376,128.52
5. Step 5: Solve for x
   x = 400,376,128.52/23,145.38
6. Step 6: Final answer
   x = 17,298.32