Finding the Fourth Proportional to 16,693.79, 23,033.61 and 9,978.27

Step by Step Solution

1. Step 1: Write the proportion equation
   16,693.79 : 23,033.61 = 9,978.27 : x
2. Step 2: Convert to fraction form
   16,693.79/23,033.61 = 9,978.27/x
3. Step 3: Cross multiply
   16,693.79x = 23,033.61 × 9,978.27
4. Step 4: Simplify right side
   16,693.79x = 229,835,579.65
5. Step 5: Solve for x
   x = 229,835,579.65/16,693.79
6. Step 6: Final answer
   x = 13,767.73