Finding the Fourth Proportional to 300,525, 414,724.50 and 166,389

Step by Step Solution

1. Step 1: Write the proportion equation
   300,525 : 414,724.50 = 166,389 : x
2. Step 2: Convert to fraction form
   300,525/414,724.50 = 166,389/x
3. Step 3: Cross multiply
   300,525x = 414,724.50 × 166,389
4. Step 4: Simplify right side
   300,525x = 69,005,594,830.50
5. Step 5: Solve for x
   x = 69,005,594,830.50/300,525
6. Step 6: Final answer
   x = 229,616.82