Finding the Fourth Proportional to 23,389.30, 35,097.78 and 8,608.60

Step by Step Solution

1. Step 1: Write the proportion equation
   23,389.30 : 35,097.78 = 8,608.60 : x
2. Step 2: Convert to fraction form
   23,389.30/35,097.78 = 8,608.60/x
3. Step 3: Cross multiply
   23,389.30x = 35,097.78 × 8,608.60
4. Step 4: Simplify right side
   23,389.30x = 302,142,573.42
5. Step 5: Solve for x
   x = 302,142,573.42/23,389.30
6. Step 6: Final answer
   x = 12,917.99