Finding the Fourth Proportional to 8,336.87, 12,491.43 and 5,866.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,336.87 : 12,491.43 = 5,866.50 : x
2. Step 2: Convert to fraction form
   8,336.87/12,491.43 = 5,866.50/x
3. Step 3: Cross multiply
   8,336.87x = 12,491.43 × 5,866.50
4. Step 4: Simplify right side
   8,336.87x = 73,280,998.94
5. Step 5: Solve for x
   x = 73,280,998.94/8,336.87
6. Step 6: Final answer
   x = 8,789.98