Finding the Fourth Proportional to 16,899.96, 23,321.54 and 9,828.84

Step by Step Solution

1. Step 1: Write the proportion equation
   16,899.96 : 23,321.54 = 9,828.84 : x
2. Step 2: Convert to fraction form
   16,899.96/23,321.54 = 9,828.84/x
3. Step 3: Cross multiply
   16,899.96x = 23,321.54 × 9,828.84
4. Step 4: Simplify right side
   16,899.96x = 229,223,685.21
5. Step 5: Solve for x
   x = 229,223,685.21/16,899.96
6. Step 6: Final answer
   x = 13,563.56