Finding the Fourth Proportional to 19,456.02, 26,824.71 and 12,730.98

Step by Step Solution

1. Step 1: Write the proportion equation
   19,456.02 : 26,824.71 = 12,730.98 : x
2. Step 2: Convert to fraction form
   19,456.02/26,824.71 = 12,730.98/x
3. Step 3: Cross multiply
   19,456.02x = 26,824.71 × 12,730.98
4. Step 4: Simplify right side
   19,456.02x = 341,504,846.52
5. Step 5: Solve for x
   x = 341,504,846.52/19,456.02
6. Step 6: Final answer
   x = 17,552.66