Finding the Fourth Proportional to 404,158,348.67, 557,633,123.63 and 236,804,692.31

Step by Step Solution

1. Step 1: Write the proportion equation
   404,158,348.67 : 557,633,123.63 = 236,804,692.31 : x
2. Step 2: Convert to fraction form
   404,158,348.67/557,633,123.63 = 236,804,692.31/x
3. Step 3: Cross multiply
   404,158,348.67x = 557,633,123.63 × 236,804,692.31
4. Step 4: Simplify right side
   404,158,348.67x = 132,050,140,259,094,160
5. Step 5: Solve for x
   x = 132,050,140,259,094,160/404,158,348.67
6. Step 6: Final answer
   x = 326,728,720.80