Finding the Fourth Proportional to 8,929.31, 12,320.64 and 5,743.17

Step by Step Solution

1. Step 1: Write the proportion equation
   8,929.31 : 12,320.64 = 5,743.17 : x
2. Step 2: Convert to fraction form
   8,929.31/12,320.64 = 5,743.17/x
3. Step 3: Cross multiply
   8,929.31x = 12,320.64 × 5,743.17
4. Step 4: Simplify right side
   8,929.31x = 70,759,530.03
5. Step 5: Solve for x
   x = 70,759,530.03/8,929.31
6. Step 6: Final answer
   x = 7,924.42