Finding the Fourth Proportional to 300,699, 414,978.30 and 166,563

Step by Step Solution

1. Step 1: Write the proportion equation
   300,699 : 414,978.30 = 166,563 : x
2. Step 2: Convert to fraction form
   300,699/414,978.30 = 166,563/x
3. Step 3: Cross multiply
   300,699x = 414,978.30 × 166,563
4. Step 4: Simplify right side
   300,699x = 69,120,030,582.90
5. Step 5: Solve for x
   x = 69,120,030,582.90/300,699
6. Step 6: Final answer
   x = 229,864.52