Finding the Fourth Proportional to 30,321.34, 41,839.61 and 16,891.61

Step by Step Solution

1. Step 1: Write the proportion equation
   30,321.34 : 41,839.61 = 16,891.61 : x
2. Step 2: Convert to fraction form
   30,321.34/41,839.61 = 16,891.61/x
3. Step 3: Cross multiply
   30,321.34x = 41,839.61 × 16,891.61
4. Step 4: Simplify right side
   30,321.34x = 706,738,081.02
5. Step 5: Solve for x
   x = 706,738,081.02/30,321.34
6. Step 6: Final answer
   x = 23,308.28