Finding the Fourth Proportional to 12,205,144.42, 18,307,992.74 and 3,107,208.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,205,144.42 : 18,307,992.74 = 3,107,208.02 : x
2. Step 2: Convert to fraction form
   12,205,144.42/18,307,992.74 = 3,107,208.02/x
3. Step 3: Cross multiply
   12,205,144.42x = 18,307,992.74 × 3,107,208.02
4. Step 4: Simplify right side
   12,205,144.42x = 56,886,741,764,753.77
5. Step 5: Solve for x
   x = 56,886,741,764,753.77/12,205,144.42
6. Step 6: Final answer
   x = 4,660,882.31