Finding the Fourth Proportional to 23,245.89, 34,883.69 and 8,453.40

Step by Step Solution

1. Step 1: Write the proportion equation
   23,245.89 : 34,883.69 = 8,453.40 : x
2. Step 2: Convert to fraction form
   23,245.89/34,883.69 = 8,453.40/x
3. Step 3: Cross multiply
   23,245.89x = 34,883.69 × 8,453.40
4. Step 4: Simplify right side
   23,245.89x = 294,885,742.78
5. Step 5: Solve for x
   x = 294,885,742.78/23,245.89
6. Step 6: Final answer
   x = 12,685.50