Finding the Fourth Proportional to 8,270,019.92, 12,405,020.16 and 2,590,686.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,270,019.92 : 12,405,020.16 = 2,590,686.56 : x
2. Step 2: Convert to fraction form
   8,270,019.92/12,405,020.16 = 2,590,686.56/x
3. Step 3: Cross multiply
   8,270,019.92x = 12,405,020.16 × 2,590,686.56
4. Step 4: Simplify right side
   8,270,019.92x = 32,137,519,005,041.05
5. Step 5: Solve for x
   x = 32,137,519,005,041.05/8,270,019.92
6. Step 6: Final answer
   x = 3,886,026.80