Finding the Fourth Proportional to 20,795,786.16, 31,181,672.32 and 6,414,992.72

Step by Step Solution

1. Step 1: Write the proportion equation
   20,795,786.16 : 31,181,672.32 = 6,414,992.72 : x
2. Step 2: Convert to fraction form
   20,795,786.16/31,181,672.32 = 6,414,992.72/x
3. Step 3: Cross multiply
   20,795,786.16x = 31,181,672.32 × 6,414,992.72
4. Step 4: Simplify right side
   20,795,786.16x = 200,030,200,930,225.50
5. Step 5: Solve for x
   x = 200,030,200,930,225.50/20,795,786.16
6. Step 6: Final answer
   x = 9,618,785.24