Finding the Fourth Proportional to 8,158.82, 12,238.50 and 2,612.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,158.82 : 12,238.50 = 2,612.76 : x
2. Step 2: Convert to fraction form
   8,158.82/12,238.50 = 2,612.76/x
3. Step 3: Cross multiply
   8,158.82x = 12,238.50 × 2,612.76
4. Step 4: Simplify right side
   8,158.82x = 31,976,263.26
5. Step 5: Solve for x
   x = 31,976,263.26/8,158.82
6. Step 6: Final answer
   x = 3,919.23