Finding the Fourth Proportional to 30,643.92, 42,287.94 and 17,031.06

Step by Step Solution

1. Step 1: Write the proportion equation
   30,643.92 : 42,287.94 = 17,031.06 : x
2. Step 2: Convert to fraction form
   30,643.92/42,287.94 = 17,031.06/x
3. Step 3: Cross multiply
   30,643.92x = 42,287.94 × 17,031.06
4. Step 4: Simplify right side
   30,643.92x = 720,208,443.42
5. Step 5: Solve for x
   x = 720,208,443.42/30,643.92
6. Step 6: Final answer
   x = 23,502.49