Finding the Fourth Proportional to 12,236,456.35, 18,338,150.31 and 4,659,288.67

Step by Step Solution

1. Step 1: Write the proportion equation
   12,236,456.35 : 18,338,150.31 = 4,659,288.67 : x
2. Step 2: Convert to fraction form
   12,236,456.35/18,338,150.31 = 4,659,288.67/x
3. Step 3: Cross multiply
   12,236,456.35x = 18,338,150.31 × 4,659,288.67
4. Step 4: Simplify right side
   12,236,456.35x = 85,442,735,968,139.98
5. Step 5: Solve for x
   x = 85,442,735,968,139.98/12,236,456.35
6. Step 6: Final answer
   x = 6,982,637.25