Finding the Fourth Proportional to 6,998.04, 10,499.49 and 3,105.18

Step by Step Solution

1. Step 1: Write the proportion equation
   6,998.04 : 10,499.49 = 3,105.18 : x
2. Step 2: Convert to fraction form
   6,998.04/10,499.49 = 3,105.18/x
3. Step 3: Cross multiply
   6,998.04x = 10,499.49 × 3,105.18
4. Step 4: Simplify right side
   6,998.04x = 32,602,806.36
5. Step 5: Solve for x
   x = 32,602,806.36/6,998.04
6. Step 6: Final answer
   x = 4,658.85