Finding the Fourth Proportional to 287,297.98, 396,467.46 and 158,234.00

Step by Step Solution

1. Step 1: Write the proportion equation
   287,297.98 : 396,467.46 = 158,234.00 : x
2. Step 2: Convert to fraction form
   287,297.98/396,467.46 = 158,234.00/x
3. Step 3: Cross multiply
   287,297.98x = 396,467.46 × 158,234.00
4. Step 4: Simplify right side
   287,297.98x = 62,734,630,083.30
5. Step 5: Solve for x
   x = 62,734,630,083.30/287,297.98
6. Step 6: Final answer
   x = 218,360.85