Finding the Fourth Proportional to 23,144.10, 31,938.87 and 12,533.78

Step by Step Solution

1. Step 1: Write the proportion equation
   23,144.10 : 31,938.87 = 12,533.78 : x
2. Step 2: Convert to fraction form
   23,144.10/31,938.87 = 12,533.78/x
3. Step 3: Cross multiply
   23,144.10x = 31,938.87 × 12,533.78
4. Step 4: Simplify right side
   23,144.10x = 400,314,770.03
5. Step 5: Solve for x
   x = 400,314,770.03/23,144.10
6. Step 6: Final answer
   x = 17,296.62