Finding the Fourth Proportional to 6,345.74, 8,756.89 and 3,513.12

Step by Step Solution

1. Step 1: Write the proportion equation
   6,345.74 : 8,756.89 = 3,513.12 : x
2. Step 2: Convert to fraction form
   6,345.74/8,756.89 = 3,513.12/x
3. Step 3: Cross multiply
   6,345.74x = 8,756.89 × 3,513.12
4. Step 4: Simplify right side
   6,345.74x = 30,764,005.40
5. Step 5: Solve for x
   x = 30,764,005.40/6,345.74
6. Step 6: Final answer
   x = 4,847.98