Finding the Fourth Proportional to 30,478.82, 42,064.26 and 17,053.48

Step by Step Solution

1. Step 1: Write the proportion equation
   30,478.82 : 42,064.26 = 17,053.48 : x
2. Step 2: Convert to fraction form
   30,478.82/42,064.26 = 17,053.48/x
3. Step 3: Cross multiply
   30,478.82x = 42,064.26 × 17,053.48
4. Step 4: Simplify right side
   30,478.82x = 717,342,016.62
5. Step 5: Solve for x
   x = 717,342,016.62/30,478.82
6. Step 6: Final answer
   x = 23,535.75