Finding the Fourth Proportional to 8,420,866.72, 12,632,856.49 and 2,665,050.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,420,866.72 : 12,632,856.49 = 2,665,050.86 : x
2. Step 2: Convert to fraction form
   8,420,866.72/12,632,856.49 = 2,665,050.86/x
3. Step 3: Cross multiply
   8,420,866.72x = 12,632,856.49 × 2,665,050.86
4. Step 4: Simplify right side
   8,420,866.72x = 33,667,205,087,844.54
5. Step 5: Solve for x
   x = 33,667,205,087,844.54/8,420,866.72
6. Step 6: Final answer
   x = 3,998,068.87