Finding the Fourth Proportional to 309,620.82, 464,562.73 and 169,215.42

Step by Step Solution

1. Step 1: Write the proportion equation
   309,620.82 : 464,562.73 = 169,215.42 : x
2. Step 2: Convert to fraction form
   309,620.82/464,562.73 = 169,215.42/x
3. Step 3: Cross multiply
   309,620.82x = 464,562.73 × 169,215.42
4. Step 4: Simplify right side
   309,620.82x = 78,611,177,473.30
5. Step 5: Solve for x
   x = 78,611,177,473.30/309,620.82
6. Step 6: Final answer
   x = 253,895.00