Finding the Fourth Proportional to 31,269.34, 43,151.70 and 17,123.05

Step by Step Solution

1. Step 1: Write the proportion equation
   31,269.34 : 43,151.70 = 17,123.05 : x
2. Step 2: Convert to fraction form
   31,269.34/43,151.70 = 17,123.05/x
3. Step 3: Cross multiply
   31,269.34x = 43,151.70 × 17,123.05
4. Step 4: Simplify right side
   31,269.34x = 738,888,716.69
5. Step 5: Solve for x
   x = 738,888,716.69/31,269.34
6. Step 6: Final answer
   x = 23,629.81