Finding the Fourth Proportional to 17,111.41, 23,580.09 and 13,082.79

Step by Step Solution

1. Step 1: Write the proportion equation
   17,111.41 : 23,580.09 = 13,082.79 : x
2. Step 2: Convert to fraction form
   17,111.41/23,580.09 = 13,082.79/x
3. Step 3: Cross multiply
   17,111.41x = 23,580.09 × 13,082.79
4. Step 4: Simplify right side
   17,111.41x = 308,493,365.65
5. Step 5: Solve for x
   x = 308,493,365.65/17,111.41
6. Step 6: Final answer
   x = 18,028.52