Finding the Fourth Proportional to 404,077.28, 557,692.38 and 243,095

Step by Step Solution

1. Step 1: Write the proportion equation
   404,077.28 : 557,692.38 = 243,095 : x
2. Step 2: Convert to fraction form
   404,077.28/557,692.38 = 243,095/x
3. Step 3: Cross multiply
   404,077.28x = 557,692.38 × 243,095
4. Step 4: Simplify right side
   404,077.28x = 135,572,229,116.10
5. Step 5: Solve for x
   x = 135,572,229,116.10/404,077.28
6. Step 6: Final answer
   x = 335,510.65