Finding the Fourth Proportional to 17,458.54, 23,935.69 and 17,142.64

Step by Step Solution

1. Step 1: Write the proportion equation
   17,458.54 : 23,935.69 = 17,142.64 : x
2. Step 2: Convert to fraction form
   17,458.54/23,935.69 = 17,142.64/x
3. Step 3: Cross multiply
   17,458.54x = 23,935.69 × 17,142.64
4. Step 4: Simplify right side
   17,458.54x = 410,320,916.82
5. Step 5: Solve for x
   x = 410,320,916.82/17,458.54
6. Step 6: Final answer
   x = 23,502.59