Finding the Fourth Proportional to 12,364.40, 17,043.42 and 9,368.18

Step by Step Solution

1. Step 1: Write the proportion equation
   12,364.40 : 17,043.42 = 9,368.18 : x
2. Step 2: Convert to fraction form
   12,364.40/17,043.42 = 9,368.18/x
3. Step 3: Cross multiply
   12,364.40x = 17,043.42 × 9,368.18
4. Step 4: Simplify right side
   12,364.40x = 159,665,826.38
5. Step 5: Solve for x
   x = 159,665,826.38/12,364.40
6. Step 6: Final answer
   x = 12,913.35