Finding the Fourth Proportional to 31,269.59, 43,151.60 and 17,122.43

Step by Step Solution

1. Step 1: Write the proportion equation
   31,269.59 : 43,151.60 = 17,122.43 : x
2. Step 2: Convert to fraction form
   31,269.59/43,151.60 = 17,122.43/x
3. Step 3: Cross multiply
   31,269.59x = 43,151.60 × 17,122.43
4. Step 4: Simplify right side
   31,269.59x = 738,859,949.02
5. Step 5: Solve for x
   x = 738,859,949.02/31,269.59
6. Step 6: Final answer
   x = 23,628.71