Finding the Fourth Proportional to 23,143.37, 31,937.78 and 12,533.00

Step by Step Solution

1. Step 1: Write the proportion equation
   23,143.37 : 31,937.78 = 12,533.00 : x
2. Step 2: Convert to fraction form
   23,143.37/31,937.78 = 12,533.00/x
3. Step 3: Cross multiply
   23,143.37x = 31,937.78 × 12,533.00
4. Step 4: Simplify right side
   23,143.37x = 400,276,163.89
5. Step 5: Solve for x
   x = 400,276,163.89/23,143.37
6. Step 6: Final answer
   x = 17,295.50