Finding the Fourth Proportional to 8,500.73, 12,756.11 and 3,569.99

Step by Step Solution

1. Step 1: Write the proportion equation
   8,500.73 : 12,756.11 = 3,569.99 : x
2. Step 2: Convert to fraction form
   8,500.73/12,756.11 = 3,569.99/x
3. Step 3: Cross multiply
   8,500.73x = 12,756.11 × 3,569.99
4. Step 4: Simplify right side
   8,500.73x = 45,539,103.51
5. Step 5: Solve for x
   x = 45,539,103.51/8,500.73
6. Step 6: Final answer
   x = 5,357.08