Finding the Fourth Proportional to 12,387.09, 18,581.94 and 5,367.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,387.09 : 18,581.94 = 5,367.82 : x
2. Step 2: Convert to fraction form
   12,387.09/18,581.94 = 5,367.82/x
3. Step 3: Cross multiply
   12,387.09x = 18,581.94 × 5,367.82
4. Step 4: Simplify right side
   12,387.09x = 99,744,509.17
5. Step 5: Solve for x
   x = 99,744,509.17/12,387.09
6. Step 6: Final answer
   x = 8,052.30