Finding the Fourth Proportional to 12,809.41, 19,189.41 and 7,245.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,809.41 : 19,189.41 = 7,245.73 : x
2. Step 2: Convert to fraction form
   12,809.41/19,189.41 = 7,245.73/x
3. Step 3: Cross multiply
   12,809.41x = 19,189.41 × 7,245.73
4. Step 4: Simplify right side
   12,809.41x = 139,041,283.72
5. Step 5: Solve for x
   x = 139,041,283.72/12,809.41
6. Step 6: Final answer
   x = 10,854.62