Finding the Fourth Proportional to 23,277.68, 34,923 and 12,896.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,277.68 : 34,923 = 12,896.72 : x
2. Step 2: Convert to fraction form
   23,277.68/34,923 = 12,896.72/x
3. Step 3: Cross multiply
   23,277.68x = 34,923 × 12,896.72
4. Step 4: Simplify right side
   23,277.68x = 450,392,152.56
5. Step 5: Solve for x
   x = 450,392,152.56/23,277.68
6. Step 6: Final answer
   x = 19,348.67