Finding the Fourth Proportional to 30,662.07, 42,304.94 and 17,231.91

Step by Step Solution

1. Step 1: Write the proportion equation
   30,662.07 : 42,304.94 = 17,231.91 : x
2. Step 2: Convert to fraction form
   30,662.07/42,304.94 = 17,231.91/x
3. Step 3: Cross multiply
   30,662.07x = 42,304.94 × 17,231.91
4. Step 4: Simplify right side
   30,662.07x = 728,994,832.48
5. Step 5: Solve for x
   x = 728,994,832.48/30,662.07
6. Step 6: Final answer
   x = 23,775.13