Finding the Fourth Proportional to 17,109.77, 25,658.15 and 8,222.63

Step by Step Solution

1. Step 1: Write the proportion equation
   17,109.77 : 25,658.15 = 8,222.63 : x
2. Step 2: Convert to fraction form
   17,109.77/25,658.15 = 8,222.63/x
3. Step 3: Cross multiply
   17,109.77x = 25,658.15 × 8,222.63
4. Step 4: Simplify right side
   17,109.77x = 210,977,304.53
5. Step 5: Solve for x
   x = 210,977,304.53/17,109.77
6. Step 6: Final answer
   x = 12,330.81