Finding the Fourth Proportional to 23,404.45, 35,120.55 and 8,623.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,404.45 : 35,120.55 = 8,623.72 : x
2. Step 2: Convert to fraction form
   23,404.45/35,120.55 = 8,623.72/x
3. Step 3: Cross multiply
   23,404.45x = 35,120.55 × 8,623.72
4. Step 4: Simplify right side
   23,404.45x = 302,869,789.45
5. Step 5: Solve for x
   x = 302,869,789.45/23,404.45
6. Step 6: Final answer
   x = 12,940.69