Finding the Fourth Proportional to 8,162.15, 12,242.39 and 2,619.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,162.15 : 12,242.39 = 2,619.48 : x
2. Step 2: Convert to fraction form
   8,162.15/12,242.39 = 2,619.48/x
3. Step 3: Cross multiply
   8,162.15x = 12,242.39 × 2,619.48
4. Step 4: Simplify right side
   8,162.15x = 32,068,682.66
5. Step 5: Solve for x
   x = 32,068,682.66/8,162.15
6. Step 6: Final answer
   x = 3,928.95