Finding the Fourth Proportional to 9,313.34, 12,857.17 and 7,184.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,313.34 : 12,857.17 = 7,184.09 : x
2. Step 2: Convert to fraction form
   9,313.34/12,857.17 = 7,184.09/x
3. Step 3: Cross multiply
   9,313.34x = 12,857.17 × 7,184.09
4. Step 4: Simplify right side
   9,313.34x = 92,367,066.43
5. Step 5: Solve for x
   x = 92,367,066.43/9,313.34
6. Step 6: Final answer
   x = 9,917.72