Finding the Fourth Proportional to 9,314.56, 12,874.64 and 8,187.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,314.56 : 12,874.64 = 8,187.04 : x
2. Step 2: Convert to fraction form
   9,314.56/12,874.64 = 8,187.04/x
3. Step 3: Cross multiply
   9,314.56x = 12,874.64 × 8,187.04
4. Step 4: Simplify right side
   9,314.56x = 105,405,192.67
5. Step 5: Solve for x
   x = 105,405,192.67/9,314.56
6. Step 6: Final answer
   x = 11,316.18