Finding the Fourth Proportional to 17,111.12, 23,601.12 and 11,131.64

Step by Step Solution

1. Step 1: Write the proportion equation
   17,111.12 : 23,601.12 = 11,131.64 : x
2. Step 2: Convert to fraction form
   17,111.12/23,601.12 = 11,131.64/x
3. Step 3: Cross multiply
   17,111.12x = 23,601.12 × 11,131.64
4. Step 4: Simplify right side
   17,111.12x = 262,719,171.44
5. Step 5: Solve for x
   x = 262,719,171.44/17,111.12
6. Step 6: Final answer
   x = 15,353.71