Finding the Fourth Proportional to 6,810.77, 9,404.11 and 5,490.37

Step by Step Solution

1. Step 1: Write the proportion equation
   6,810.77 : 9,404.11 = 5,490.37 : x
2. Step 2: Convert to fraction form
   6,810.77/9,404.11 = 5,490.37/x
3. Step 3: Cross multiply
   6,810.77x = 9,404.11 × 5,490.37
4. Step 4: Simplify right side
   6,810.77x = 51,632,043.42
5. Step 5: Solve for x
   x = 51,632,043.42/6,810.77
6. Step 6: Final answer
   x = 7,580.94