Finding the Fourth Proportional to 290,557.98, 400,960.73 and 161,495.82

Step by Step Solution

1. Step 1: Write the proportion equation
   290,557.98 : 400,960.73 = 161,495.82 : x
2. Step 2: Convert to fraction form
   290,557.98/400,960.73 = 161,495.82/x
3. Step 3: Cross multiply
   290,557.98x = 400,960.73 × 161,495.82
4. Step 4: Simplify right side
   290,557.98x = 64,753,482,282.89
5. Step 5: Solve for x
   x = 64,753,482,282.89/290,557.98
6. Step 6: Final answer
   x = 222,859.07