Finding the Fourth Proportional to 23,945.31, 35,940.13 and 12,107.43

Step by Step Solution

1. Step 1: Write the proportion equation
   23,945.31 : 35,940.13 = 12,107.43 : x
2. Step 2: Convert to fraction form
   23,945.31/35,940.13 = 12,107.43/x
3. Step 3: Cross multiply
   23,945.31x = 35,940.13 × 12,107.43
4. Step 4: Simplify right side
   23,945.31x = 435,142,577.90
5. Step 5: Solve for x
   x = 435,142,577.90/23,945.31
6. Step 6: Final answer
   x = 18,172.35