Finding the Fourth Proportional to 23,113.89, 31,896.72 and 13,043.43

Step by Step Solution

1. Step 1: Write the proportion equation
   23,113.89 : 31,896.72 = 13,043.43 : x
2. Step 2: Convert to fraction form
   23,113.89/31,896.72 = 13,043.43/x
3. Step 3: Cross multiply
   23,113.89x = 31,896.72 × 13,043.43
4. Step 4: Simplify right side
   23,113.89x = 416,042,634.55
5. Step 5: Solve for x
   x = 416,042,634.55/23,113.89
6. Step 6: Final answer
   x = 17,999.68