Finding the Fourth Proportional to 12,361.44, 18,546.72 and 5,789.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,361.44 : 18,546.72 = 5,789.76 : x
2. Step 2: Convert to fraction form
   12,361.44/18,546.72 = 5,789.76/x
3. Step 3: Cross multiply
   12,361.44x = 18,546.72 × 5,789.76
4. Step 4: Simplify right side
   12,361.44x = 107,381,057.59
5. Step 5: Solve for x
   x = 107,381,057.59/12,361.44
6. Step 6: Final answer
   x = 8,686.78