Finding the Fourth Proportional to 30,656.32, 42,304.80 and 17,227.68

Step by Step Solution

1. Step 1: Write the proportion equation
   30,656.32 : 42,304.80 = 17,227.68 : x
2. Step 2: Convert to fraction form
   30,656.32/42,304.80 = 17,227.68/x
3. Step 3: Cross multiply
   30,656.32x = 42,304.80 × 17,227.68
4. Step 4: Simplify right side
   30,656.32x = 728,813,556.86
5. Step 5: Solve for x
   x = 728,813,556.86/30,656.32
6. Step 6: Final answer
   x = 23,773.68