Finding the Fourth Proportional to 6,499.70, 8,969.46 and 3,811.58

Step by Step Solution

1. Step 1: Write the proportion equation
   6,499.70 : 8,969.46 = 3,811.58 : x
2. Step 2: Convert to fraction form
   6,499.70/8,969.46 = 3,811.58/x
3. Step 3: Cross multiply
   6,499.70x = 8,969.46 × 3,811.58
4. Step 4: Simplify right side
   6,499.70x = 34,187,814.35
5. Step 5: Solve for x
   x = 34,187,814.35/6,499.70
6. Step 6: Final answer
   x = 5,259.91