Finding the Fourth Proportional to 7,275,686.27, 10,911,667.21 and 2,156,919.16

Step by Step Solution

1. Step 1: Write the proportion equation
   7,275,686.27 : 10,911,667.21 = 2,156,919.16 : x
2. Step 2: Convert to fraction form
   7,275,686.27/10,911,667.21 = 2,156,919.16/x
3. Step 3: Cross multiply
   7,275,686.27x = 10,911,667.21 × 2,156,919.16
4. Step 4: Simplify right side
   7,275,686.27x = 23,535,584,081,040.03
5. Step 5: Solve for x
   x = 23,535,584,081,040.03/7,275,686.27
6. Step 6: Final answer
   x = 3,234,826.68