Finding the Fourth Proportional to 12,942.58, 19,414.30 and 3,581.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,942.58 : 19,414.30 = 3,581.81 : x
2. Step 2: Convert to fraction form
   12,942.58/19,414.30 = 3,581.81/x
3. Step 3: Cross multiply
   12,942.58x = 19,414.30 × 3,581.81
4. Step 4: Simplify right side
   12,942.58x = 69,538,333.88
5. Step 5: Solve for x
   x = 69,538,333.88/12,942.58
6. Step 6: Final answer
   x = 5,372.83