Finding the Fourth Proportional to 8,141.32, 12,211.96 and 2,945.98

Step by Step Solution

1. Step 1: Write the proportion equation
   8,141.32 : 12,211.96 = 2,945.98 : x
2. Step 2: Convert to fraction form
   8,141.32/12,211.96 = 2,945.98/x
3. Step 3: Cross multiply
   8,141.32x = 12,211.96 × 2,945.98
4. Step 4: Simplify right side
   8,141.32x = 35,976,189.92
5. Step 5: Solve for x
   x = 35,976,189.92/8,141.32
6. Step 6: Final answer
   x = 4,418.96