Finding the Fourth Proportional to 23,436.74, 35,144.17 and 13,578.84

Step by Step Solution

1. Step 1: Write the proportion equation
   23,436.74 : 35,144.17 = 13,578.84 : x
2. Step 2: Convert to fraction form
   23,436.74/35,144.17 = 13,578.84/x
3. Step 3: Cross multiply
   23,436.74x = 35,144.17 × 13,578.84
4. Step 4: Simplify right side
   23,436.74x = 477,217,061.36
5. Step 5: Solve for x
   x = 477,217,061.36/23,436.74
6. Step 6: Final answer
   x = 20,361.92