Finding the Fourth Proportional to 23,436.06, 35,158.79 and 8,645.05

Step by Step Solution

1. Step 1: Write the proportion equation
   23,436.06 : 35,158.79 = 8,645.05 : x
2. Step 2: Convert to fraction form
   23,436.06/35,158.79 = 8,645.05/x
3. Step 3: Cross multiply
   23,436.06x = 35,158.79 × 8,645.05
4. Step 4: Simplify right side
   23,436.06x = 303,949,497.49
5. Step 5: Solve for x
   x = 303,949,497.49/23,436.06
6. Step 6: Final answer
   x = 12,969.31