Finding the Fourth Proportional to 16,997.88, 23,458.74 and 9,828.10

Step by Step Solution

1. Step 1: Write the proportion equation
   16,997.88 : 23,458.74 = 9,828.10 : x
2. Step 2: Convert to fraction form
   16,997.88/23,458.74 = 9,828.10/x
3. Step 3: Cross multiply
   16,997.88x = 23,458.74 × 9,828.10
4. Step 4: Simplify right side
   16,997.88x = 230,554,842.59
5. Step 5: Solve for x
   x = 230,554,842.59/16,997.88
6. Step 6: Final answer
   x = 13,563.74