Finding the Fourth Proportional to 6,499.36, 8,969.76 and 3,705.28

Step by Step Solution

1. Step 1: Write the proportion equation
   6,499.36 : 8,969.76 = 3,705.28 : x
2. Step 2: Convert to fraction form
   6,499.36/8,969.76 = 3,705.28/x
3. Step 3: Cross multiply
   6,499.36x = 8,969.76 × 3,705.28
4. Step 4: Simplify right side
   6,499.36x = 33,235,472.33
5. Step 5: Solve for x
   x = 33,235,472.33/6,499.36
6. Step 6: Final answer
   x = 5,113.65