Finding the Fourth Proportional to 296,388.96, 408,978.72 and 169,056.96

Step by Step Solution

1. Step 1: Write the proportion equation
   296,388.96 : 408,978.72 = 169,056.96 : x
2. Step 2: Convert to fraction form
   296,388.96/408,978.72 = 169,056.96/x
3. Step 3: Cross multiply
   296,388.96x = 408,978.72 × 169,056.96
4. Step 4: Simplify right side
   296,388.96x = 69,140,699,107.89
5. Step 5: Solve for x
   x = 69,140,699,107.89/296,388.96
6. Step 6: Final answer
   x = 233,276.90