Finding the Fourth Proportional to 30,838, 42,556.56 and 16,690.84

Step by Step Solution

1. Step 1: Write the proportion equation
   30,838 : 42,556.56 = 16,690.84 : x
2. Step 2: Convert to fraction form
   30,838/42,556.56 = 16,690.84/x
3. Step 3: Cross multiply
   30,838x = 42,556.56 × 16,690.84
4. Step 4: Simplify right side
   30,838x = 710,304,733.91
5. Step 5: Solve for x
   x = 710,304,733.91/30,838
6. Step 6: Final answer
   x = 23,033.42