Finding the Fourth Proportional to 8,162.42, 12,238.70 and 4,459.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,162.42 : 12,238.70 = 4,459.50 : x
2. Step 2: Convert to fraction form
   8,162.42/12,238.70 = 4,459.50/x
3. Step 3: Cross multiply
   8,162.42x = 12,238.70 × 4,459.50
4. Step 4: Simplify right side
   8,162.42x = 54,578,482.65
5. Step 5: Solve for x
   x = 54,578,482.65/8,162.42
6. Step 6: Final answer
   x = 6,686.56