Finding the Fourth Proportional to 9,081.64, 12,503.94 and 8,251.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,081.64 : 12,503.94 = 8,251.16 : x
2. Step 2: Convert to fraction form
   9,081.64/12,503.94 = 8,251.16/x
3. Step 3: Cross multiply
   9,081.64x = 12,503.94 × 8,251.16
4. Step 4: Simplify right side
   9,081.64x = 103,172,009.57
5. Step 5: Solve for x
   x = 103,172,009.57/9,081.64
6. Step 6: Final answer
   x = 11,360.50