Finding the Fourth Proportional to 30,633, 42,272.73 and 17,205.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,633 : 42,272.73 = 17,205.72 : x
2. Step 2: Convert to fraction form
   30,633/42,272.73 = 17,205.72/x
3. Step 3: Cross multiply
   30,633x = 42,272.73 × 17,205.72
4. Step 4: Simplify right side
   30,633x = 727,332,756.02
5. Step 5: Solve for x
   x = 727,332,756.02/30,633
6. Step 6: Final answer
   x = 23,743.44