Finding the Fourth Proportional to 17,072.37, 25,597.85 and 5,222.21

Step by Step Solution

1. Step 1: Write the proportion equation
   17,072.37 : 25,597.85 = 5,222.21 : x
2. Step 2: Convert to fraction form
   17,072.37/25,597.85 = 5,222.21/x
3. Step 3: Cross multiply
   17,072.37x = 25,597.85 × 5,222.21
4. Step 4: Simplify right side
   17,072.37x = 133,677,194.15
5. Step 5: Solve for x
   x = 133,677,194.15/17,072.37
6. Step 6: Final answer
   x = 7,830.03