Finding the Fourth Proportional to 12,383,845.30, 18,560,021.55 and 5,980,309.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,383,845.30 : 18,560,021.55 = 5,980,309.30 : x
2. Step 2: Convert to fraction form
   12,383,845.30/18,560,021.55 = 5,980,309.30/x
3. Step 3: Cross multiply
   12,383,845.30x = 18,560,021.55 × 5,980,309.30
4. Step 4: Simplify right side
   12,383,845.30x = 110,994,669,483,665.42
5. Step 5: Solve for x
   x = 110,994,669,483,665.42/12,383,845.30
6. Step 6: Final answer
   x = 8,962,859.82