Finding the Fourth Proportional to 8,603,109.75, 12,904,662.31 and 3,212,180.57

Step by Step Solution

1. Step 1: Write the proportion equation
   8,603,109.75 : 12,904,662.31 = 3,212,180.57 : x
2. Step 2: Convert to fraction form
   8,603,109.75/12,904,662.31 = 3,212,180.57/x
3. Step 3: Cross multiply
   8,603,109.75x = 12,904,662.31 × 3,212,180.57
4. Step 4: Simplify right side
   8,603,109.75x = 41,452,105,534,593.31
5. Step 5: Solve for x
   x = 41,452,105,534,593.31/8,603,109.75
6. Step 6: Final answer
   x = 4,818,269.99