Finding the Fourth Proportional to 30,959.28, 42,723.83 and 17,530.55

Step by Step Solution

1. Step 1: Write the proportion equation
   30,959.28 : 42,723.83 = 17,530.55 : x
2. Step 2: Convert to fraction form
   30,959.28/42,723.83 = 17,530.55/x
3. Step 3: Cross multiply
   30,959.28x = 42,723.83 × 17,530.55
4. Step 4: Simplify right side
   30,959.28x = 748,971,936.73
5. Step 5: Solve for x
   x = 748,971,936.73/30,959.28
6. Step 6: Final answer
   x = 24,192.16