Finding the Fourth Proportional to 8,251, 12,345.50 and 5,790.62

Step by Step Solution

1. Step 1: Write the proportion equation
   8,251 : 12,345.50 = 5,790.62 : x
2. Step 2: Convert to fraction form
   8,251/12,345.50 = 5,790.62/x
3. Step 3: Cross multiply
   8,251x = 12,345.50 × 5,790.62
4. Step 4: Simplify right side
   8,251x = 71,488,099.21
5. Step 5: Solve for x
   x = 71,488,099.21/8,251
6. Step 6: Final answer
   x = 8,664.17