Finding the Fourth Proportional to 30,809.82, 42,517.71 and 17,380.62

Step by Step Solution

1. Step 1: Write the proportion equation
   30,809.82 : 42,517.71 = 17,380.62 : x
2. Step 2: Convert to fraction form
   30,809.82/42,517.71 = 17,380.62/x
3. Step 3: Cross multiply
   30,809.82x = 42,517.71 × 17,380.62
4. Step 4: Simplify right side
   30,809.82x = 738,984,160.78
5. Step 5: Solve for x
   x = 738,984,160.78/30,809.82
6. Step 6: Final answer
   x = 23,985.34