Finding the Fourth Proportional to 300,636.72, 414,889.56 and 166,500.72

Step by Step Solution

1. Step 1: Write the proportion equation
   300,636.72 : 414,889.56 = 166,500.72 : x
2. Step 2: Convert to fraction form
   300,636.72/414,889.56 = 166,500.72/x
3. Step 3: Cross multiply
   300,636.72x = 414,889.56 × 166,500.72
4. Step 4: Simplify right side
   300,636.72x = 69,079,410,460.48
5. Step 5: Solve for x
   x = 69,079,410,460.48/300,636.72
6. Step 6: Final answer
   x = 229,777.02