Finding the Fourth Proportional to 179,449.40, 268,766.06 and 139,145.42

Step by Step Solution

1. Step 1: Write the proportion equation
   179,449.40 : 268,766.06 = 139,145.42 : x
2. Step 2: Convert to fraction form
   179,449.40/268,766.06 = 139,145.42/x
3. Step 3: Cross multiply
   179,449.40x = 268,766.06 × 139,145.42
4. Step 4: Simplify right side
   179,449.40x = 37,397,564,260.89
5. Step 5: Solve for x
   x = 37,397,564,260.89/179,449.40
6. Step 6: Final answer
   x = 208,401.73