Finding the Fourth Proportional to 30,672.30, 42,327.73 and 17,243.58

Step by Step Solution

1. Step 1: Write the proportion equation
   30,672.30 : 42,327.73 = 17,243.58 : x
2. Step 2: Convert to fraction form
   30,672.30/42,327.73 = 17,243.58/x
3. Step 3: Cross multiply
   30,672.30x = 42,327.73 × 17,243.58
4. Step 4: Simplify right side
   30,672.30x = 729,881,778.76
5. Step 5: Solve for x
   x = 729,881,778.76/30,672.30
6. Step 6: Final answer
   x = 23,796.12