Finding the Fourth Proportional to 17,636.73, 24,338.59 and 9,678.79

Step by Step Solution

1. Step 1: Write the proportion equation
   17,636.73 : 24,338.59 = 9,678.79 : x
2. Step 2: Convert to fraction form
   17,636.73/24,338.59 = 9,678.79/x
3. Step 3: Cross multiply
   17,636.73x = 24,338.59 × 9,678.79
4. Step 4: Simplify right side
   17,636.73x = 235,567,979.81
5. Step 5: Solve for x
   x = 235,567,979.81/17,636.73
6. Step 6: Final answer
   x = 13,356.67