Finding the Fourth Proportional to 20,158.24, 30,234.72 and 7,674.88

Step by Step Solution

1. Step 1: Write the proportion equation
   20,158.24 : 30,234.72 = 7,674.88 : x
2. Step 2: Convert to fraction form
   20,158.24/30,234.72 = 7,674.88/x
3. Step 3: Cross multiply
   20,158.24x = 30,234.72 × 7,674.88
4. Step 4: Simplify right side
   20,158.24x = 232,047,847.83
5. Step 5: Solve for x
   x = 232,047,847.83/20,158.24
6. Step 6: Final answer
   x = 11,511.31