Finding the Fourth Proportional to 17,019.11, 23,485.96 and 9,257.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,019.11 : 23,485.96 = 9,257.72 : x
2. Step 2: Convert to fraction form
   17,019.11/23,485.96 = 9,257.72/x
3. Step 3: Cross multiply
   17,019.11x = 23,485.96 × 9,257.72
4. Step 4: Simplify right side
   17,019.11x = 217,426,277.89
5. Step 5: Solve for x
   x = 217,426,277.89/17,019.11
6. Step 6: Final answer
   x = 12,775.42