Finding the Fourth Proportional to 30,826.56, 42,540.48 and 17,397.12

Step by Step Solution

1. Step 1: Write the proportion equation
   30,826.56 : 42,540.48 = 17,397.12 : x
2. Step 2: Convert to fraction form
   30,826.56/42,540.48 = 17,397.12/x
3. Step 3: Cross multiply
   30,826.56x = 42,540.48 × 17,397.12
4. Step 4: Simplify right side
   30,826.56x = 740,081,835.42
5. Step 5: Solve for x
   x = 740,081,835.42/30,826.56
6. Step 6: Final answer
   x = 24,007.93