Finding the Fourth Proportional to 30,715.37, 42,391.29 and 17,289.24

Step by Step Solution

1. Step 1: Write the proportion equation
   30,715.37 : 42,391.29 = 17,289.24 : x
2. Step 2: Convert to fraction form
   30,715.37/42,391.29 = 17,289.24/x
3. Step 3: Cross multiply
   30,715.37x = 42,391.29 × 17,289.24
4. Step 4: Simplify right side
   30,715.37x = 732,913,186.72
5. Step 5: Solve for x
   x = 732,913,186.72/30,715.37
6. Step 6: Final answer
   x = 23,861.45