Finding the Fourth Proportional to 23,144.12, 31,938.84 and 12,533.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,144.12 : 31,938.84 = 12,533.72 : x
2. Step 2: Convert to fraction form
   23,144.12/31,938.84 = 12,533.72/x
3. Step 3: Cross multiply
   23,144.12x = 31,938.84 × 12,533.72
4. Step 4: Simplify right side
   23,144.12x = 400,312,477.68
5. Step 5: Solve for x
   x = 400,312,477.68/23,144.12
6. Step 6: Final answer
   x = 17,296.51