Finding the Fourth Proportional to 23,405.90, 35,122.71 and 8,625.18

Step by Step Solution

1. Step 1: Write the proportion equation
   23,405.90 : 35,122.71 = 8,625.18 : x
2. Step 2: Convert to fraction form
   23,405.90/35,122.71 = 8,625.18/x
3. Step 3: Cross multiply
   23,405.90x = 35,122.71 × 8,625.18
4. Step 4: Simplify right side
   23,405.90x = 302,939,859.89
5. Step 5: Solve for x
   x = 302,939,859.89/23,405.90
6. Step 6: Final answer
   x = 12,942.89