Finding the Fourth Proportional to 6,771.98, 9,345.80 and 3,788.09

Step by Step Solution

1. Step 1: Write the proportion equation
   6,771.98 : 9,345.80 = 3,788.09 : x
2. Step 2: Convert to fraction form
   6,771.98/9,345.80 = 3,788.09/x
3. Step 3: Cross multiply
   6,771.98x = 9,345.80 × 3,788.09
4. Step 4: Simplify right side
   6,771.98x = 35,402,665.85
5. Step 5: Solve for x
   x = 35,402,665.85/6,771.98
6. Step 6: Final answer
   x = 5,227.82