Finding the Fourth Proportional to 30,568.23, 42,184.62 and 16,956.18

Step by Step Solution

1. Step 1: Write the proportion equation
   30,568.23 : 42,184.62 = 16,956.18 : x
2. Step 2: Convert to fraction form
   30,568.23/42,184.62 = 16,956.18/x
3. Step 3: Cross multiply
   30,568.23x = 42,184.62 × 16,956.18
4. Step 4: Simplify right side
   30,568.23x = 715,290,009.95
5. Step 5: Solve for x
   x = 715,290,009.95/30,568.23
6. Step 6: Final answer
   x = 23,399.79