Finding the Fourth Proportional to 30,656.98, 42,306.59 and 17,918.92

Step by Step Solution

1. Step 1: Write the proportion equation
   30,656.98 : 42,306.59 = 17,918.92 : x
2. Step 2: Convert to fraction form
   30,656.98/42,306.59 = 17,918.92/x
3. Step 3: Cross multiply
   30,656.98x = 42,306.59 × 17,918.92
4. Step 4: Simplify right side
   30,656.98x = 758,088,401.68
5. Step 5: Solve for x
   x = 758,088,401.68/30,656.98
6. Step 6: Final answer
   x = 24,728.08