Finding the Fourth Proportional to 17,123.16, 23,626.62 and 9,669.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,123.16 : 23,626.62 = 9,669.72 : x
2. Step 2: Convert to fraction form
   17,123.16/23,626.62 = 9,669.72/x
3. Step 3: Cross multiply
   17,123.16x = 23,626.62 × 9,669.72
4. Step 4: Simplify right side
   17,123.16x = 228,462,799.95
5. Step 5: Solve for x
   x = 228,462,799.95/17,123.16
6. Step 6: Final answer
   x = 13,342.33