Finding the Fourth Proportional to 7,007.82, 10,508.40 and 4,086.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,007.82 : 10,508.40 = 4,086.96 : x
2. Step 2: Convert to fraction form
   7,007.82/10,508.40 = 4,086.96/x
3. Step 3: Cross multiply
   7,007.82x = 10,508.40 × 4,086.96
4. Step 4: Simplify right side
   7,007.82x = 42,947,410.46
5. Step 5: Solve for x
   x = 42,947,410.46/7,007.82
6. Step 6: Final answer
   x = 6,128.50