Finding the Fourth Proportional to 8,119.02, 12,154.83 and 7,340.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,119.02 : 12,154.83 = 7,340.81 : x
2. Step 2: Convert to fraction form
   8,119.02/12,154.83 = 7,340.81/x
3. Step 3: Cross multiply
   8,119.02x = 12,154.83 × 7,340.81
4. Step 4: Simplify right side
   8,119.02x = 89,226,236.84
5. Step 5: Solve for x
   x = 89,226,236.84/8,119.02
6. Step 6: Final answer
   x = 10,989.78