Finding the Fourth Proportional to 19,196.53, 28,794.79 and 12,651.93

Step by Step Solution

1. Step 1: Write the proportion equation
   19,196.53 : 28,794.79 = 12,651.93 : x
2. Step 2: Convert to fraction form
   19,196.53/28,794.79 = 12,651.93/x
3. Step 3: Cross multiply
   19,196.53x = 28,794.79 × 12,651.93
4. Step 4: Simplify right side
   19,196.53x = 364,309,667.44
5. Step 5: Solve for x
   x = 364,309,667.44/19,196.53
6. Step 6: Final answer
   x = 18,977.89