Finding the Fourth Proportional to 8,323.72, 12,494.16 and 6,494.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,323.72 : 12,494.16 = 6,494.86 : x
2. Step 2: Convert to fraction form
   8,323.72/12,494.16 = 6,494.86/x
3. Step 3: Cross multiply
   8,323.72x = 12,494.16 × 6,494.86
4. Step 4: Simplify right side
   8,323.72x = 81,147,820.02
5. Step 5: Solve for x
   x = 81,147,820.02/8,323.72
6. Step 6: Final answer
   x = 9,748.98