Finding the Fourth Proportional to 281,920.98, 389,050.72 and 152,863.72

Step by Step Solution

1. Step 1: Write the proportion equation
   281,920.98 : 389,050.72 = 152,863.72 : x
2. Step 2: Convert to fraction form
   281,920.98/389,050.72 = 152,863.72/x
3. Step 3: Cross multiply
   281,920.98x = 389,050.72 × 152,863.72
4. Step 4: Simplify right side
   281,920.98x = 59,471,740,327.88
5. Step 5: Solve for x
   x = 59,471,740,327.88/281,920.98
6. Step 6: Final answer
   x = 210,951.81