Finding the Fourth Proportional to 11,622.32, 17,433.33 and 2,857.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,622.32 : 17,433.33 = 2,857.31 : x
2. Step 2: Convert to fraction form
   11,622.32/17,433.33 = 2,857.31/x
3. Step 3: Cross multiply
   11,622.32x = 17,433.33 × 2,857.31
4. Step 4: Simplify right side
   11,622.32x = 49,812,428.14
5. Step 5: Solve for x
   x = 49,812,428.14/11,622.32
6. Step 6: Final answer
   x = 4,285.93