Finding the Fourth Proportional to 23,143.87, 31,938.48 and 12,533.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,143.87 : 31,938.48 = 12,533.50 : x
2. Step 2: Convert to fraction form
   23,143.87/31,938.48 = 12,533.50/x
3. Step 3: Cross multiply
   23,143.87x = 31,938.48 × 12,533.50
4. Step 4: Simplify right side
   23,143.87x = 400,300,876.41
5. Step 5: Solve for x
   x = 400,300,876.41/23,143.87
6. Step 6: Final answer
   x = 17,296.19