Finding the Fourth Proportional to 12,443.16, 18,662.58 and 4,235.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,443.16 : 18,662.58 = 4,235.16 : x
2. Step 2: Convert to fraction form
   12,443.16/18,662.58 = 4,235.16/x
3. Step 3: Cross multiply
   12,443.16x = 18,662.58 × 4,235.16
4. Step 4: Simplify right side
   12,443.16x = 79,039,012.31
5. Step 5: Solve for x
   x = 79,039,012.31/12,443.16
6. Step 6: Final answer
   x = 6,352.00