Finding the Fourth Proportional to 31,269.21, 43,151.99 and 17,123.37

Step by Step Solution

1. Step 1: Write the proportion equation
   31,269.21 : 43,151.99 = 17,123.37 : x
2. Step 2: Convert to fraction form
   31,269.21/43,151.99 = 17,123.37/x
3. Step 3: Cross multiply
   31,269.21x = 43,151.99 × 17,123.37
4. Step 4: Simplify right side
   31,269.21x = 738,907,405.39
5. Step 5: Solve for x
   x = 738,907,405.39/31,269.21
6. Step 6: Final answer
   x = 23,630.51