Finding the Fourth Proportional to 30,706.16, 42,379.61 and 17,783.57

Step by Step Solution

1. Step 1: Write the proportion equation
   30,706.16 : 42,379.61 = 17,783.57 : x
2. Step 2: Convert to fraction form
   30,706.16/42,379.61 = 17,783.57/x
3. Step 3: Cross multiply
   30,706.16x = 42,379.61 × 17,783.57
4. Step 4: Simplify right side
   30,706.16x = 753,660,761.01
5. Step 5: Solve for x
   x = 753,660,761.01/30,706.16
6. Step 6: Final answer
   x = 24,544.29