Finding the Fourth Proportional to 16,788.74, 23,169.24 and 9,713.79

Step by Step Solution

1. Step 1: Write the proportion equation
   16,788.74 : 23,169.24 = 9,713.79 : x
2. Step 2: Convert to fraction form
   16,788.74/23,169.24 = 9,713.79/x
3. Step 3: Cross multiply
   16,788.74x = 23,169.24 × 9,713.79
4. Step 4: Simplify right side
   16,788.74x = 225,061,131.82
5. Step 5: Solve for x
   x = 225,061,131.82/16,788.74
6. Step 6: Final answer
   x = 13,405.48