Finding the Fourth Proportional to 340,597.72, 470,039.46 and 189,694.72

Step by Step Solution

1. Step 1: Write the proportion equation
   340,597.72 : 470,039.46 = 189,694.72 : x
2. Step 2: Convert to fraction form
   340,597.72/470,039.46 = 189,694.72/x
3. Step 3: Cross multiply
   340,597.72x = 470,039.46 × 189,694.72
4. Step 4: Simplify right side
   340,597.72x = 89,164,003,753.65
5. Step 5: Solve for x
   x = 89,164,003,753.65/340,597.72
6. Step 6: Final answer
   x = 261,786.85