Finding the Fourth Proportional to 12,250,439.92, 18,374,257.72 and 3,275,691.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,250,439.92 : 18,374,257.72 = 3,275,691.76 : x
2. Step 2: Convert to fraction form
   12,250,439.92/18,374,257.72 = 3,275,691.76/x
3. Step 3: Cross multiply
   12,250,439.92x = 18,374,257.72 × 3,275,691.76
4. Step 4: Simplify right side
   12,250,439.92x = 60,188,404,609,520.38
5. Step 5: Solve for x
   x = 60,188,404,609,520.38/12,250,439.92
6. Step 6: Final answer
   x = 4,913,162.71