Finding the Fourth Proportional to 6,998.29, 10,499.87 and 3,105.43

Step by Step Solution

1. Step 1: Write the proportion equation
   6,998.29 : 10,499.87 = 3,105.43 : x
2. Step 2: Convert to fraction form
   6,998.29/10,499.87 = 3,105.43/x
3. Step 3: Cross multiply
   6,998.29x = 10,499.87 × 3,105.43
4. Step 4: Simplify right side
   6,998.29x = 32,606,611.29
5. Step 5: Solve for x
   x = 32,606,611.29/6,998.29
6. Step 6: Final answer
   x = 4,659.23