Finding the Fourth Proportional to 6,673,789.69, 9,209,746.82 and 3,920,728.07

Step by Step Solution

1. Step 1: Write the proportion equation
   6,673,789.69 : 9,209,746.82 = 3,920,728.07 : x
2. Step 2: Convert to fraction form
   6,673,789.69/9,209,746.82 = 3,920,728.07/x
3. Step 3: Cross multiply
   6,673,789.69x = 9,209,746.82 × 3,920,728.07
4. Step 4: Simplify right side
   6,673,789.69x = 36,108,912,907,593.42
5. Step 5: Solve for x
   x = 36,108,912,907,593.42/6,673,789.69
6. Step 6: Final answer
   x = 5,410,556.01