Finding the Fourth Proportional to 30,827.36, 42,538.56 and 17,399.36

Step by Step Solution

1. Step 1: Write the proportion equation
   30,827.36 : 42,538.56 = 17,399.36 : x
2. Step 2: Convert to fraction form
   30,827.36/42,538.56 = 17,399.36/x
3. Step 3: Cross multiply
   30,827.36x = 42,538.56 × 17,399.36
4. Step 4: Simplify right side
   30,827.36x = 740,143,719.32
5. Step 5: Solve for x
   x = 740,143,719.32/30,827.36
6. Step 6: Final answer
   x = 24,009.31