Finding the Fourth Proportional to 30,702.61, 42,367.33 and 17,271.28

Step by Step Solution

1. Step 1: Write the proportion equation
   30,702.61 : 42,367.33 = 17,271.28 : x
2. Step 2: Convert to fraction form
   30,702.61/42,367.33 = 17,271.28/x
3. Step 3: Cross multiply
   30,702.61x = 42,367.33 × 17,271.28
4. Step 4: Simplify right side
   30,702.61x = 731,738,019.28
5. Step 5: Solve for x
   x = 731,738,019.28/30,702.61
6. Step 6: Final answer
   x = 23,833.09