Finding the Fourth Proportional to 30,513.29, 42,103.49 and 17,085.11

Step by Step Solution

1. Step 1: Write the proportion equation
   30,513.29 : 42,103.49 = 17,085.11 : x
2. Step 2: Convert to fraction form
   30,513.29/42,103.49 = 17,085.11/x
3. Step 3: Cross multiply
   30,513.29x = 42,103.49 × 17,085.11
4. Step 4: Simplify right side
   30,513.29x = 719,342,462.09
5. Step 5: Solve for x
   x = 719,342,462.09/30,513.29
6. Step 6: Final answer
   x = 23,574.73