Finding the Fourth Proportional to 12,262,403.88, 16,922,109.06 and 7,108,756.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,262,403.88 : 16,922,109.06 = 7,108,756.20 : x
2. Step 2: Convert to fraction form
   12,262,403.88/16,922,109.06 = 7,108,756.20/x
3. Step 3: Cross multiply
   12,262,403.88x = 16,922,109.06 × 7,108,756.20
4. Step 4: Simplify right side
   12,262,403.88x = 120,295,147,697,351.17
5. Step 5: Solve for x
   x = 120,295,147,697,351.17/12,262,403.88
6. Step 6: Final answer
   x = 9,810,078.75