Finding the Fourth Proportional to 8,917.42, 12,304.56 and 5,731.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,917.42 : 12,304.56 = 5,731.42 : x
2. Step 2: Convert to fraction form
   8,917.42/12,304.56 = 5,731.42/x
3. Step 3: Cross multiply
   8,917.42x = 12,304.56 × 5,731.42
4. Step 4: Simplify right side
   8,917.42x = 70,522,601.28
5. Step 5: Solve for x
   x = 70,522,601.28/8,917.42
6. Step 6: Final answer
   x = 7,908.41