Finding the Fourth Proportional to 12,900.37, 17,794.96 and 8,112.73

Step by Step Solution

1. Step 1: Write the proportion equation
   12,900.37 : 17,794.96 = 8,112.73 : x
2. Step 2: Convert to fraction form
   12,900.37/17,794.96 = 8,112.73/x
3. Step 3: Cross multiply
   12,900.37x = 17,794.96 × 8,112.73
4. Step 4: Simplify right side
   12,900.37x = 144,365,705.84
5. Step 5: Solve for x
   x = 144,365,705.84/12,900.37
6. Step 6: Final answer
   x = 11,190.82