Finding the Fourth Proportional to 6,610.77, 9,911.43 and 3,098.81

Step by Step Solution

1. Step 1: Write the proportion equation
   6,610.77 : 9,911.43 = 3,098.81 : x
2. Step 2: Convert to fraction form
   6,610.77/9,911.43 = 3,098.81/x
3. Step 3: Cross multiply
   6,610.77x = 9,911.43 × 3,098.81
4. Step 4: Simplify right side
   6,610.77x = 30,713,663.18
5. Step 5: Solve for x
   x = 30,713,663.18/6,610.77
6. Step 6: Final answer
   x = 4,646.00