Finding the Fourth Proportional to 8,710.46, 12,022.35 and 5,356.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,710.46 : 12,022.35 = 5,356.12 : x
2. Step 2: Convert to fraction form
   8,710.46/12,022.35 = 5,356.12/x
3. Step 3: Cross multiply
   8,710.46x = 12,022.35 × 5,356.12
4. Step 4: Simplify right side
   8,710.46x = 64,393,149.28
5. Step 5: Solve for x
   x = 64,393,149.28/8,710.46
6. Step 6: Final answer
   x = 7,392.62