Finding the Fourth Proportional to 12,686.30, 19,025.59 and 4,361.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,686.30 : 19,025.59 = 4,361.52 : x
2. Step 2: Convert to fraction form
   12,686.30/19,025.59 = 4,361.52/x
3. Step 3: Cross multiply
   12,686.30x = 19,025.59 × 4,361.52
4. Step 4: Simplify right side
   12,686.30x = 82,980,491.30
5. Step 5: Solve for x
   x = 82,980,491.30/12,686.30
6. Step 6: Final answer
   x = 6,540.95