Finding the Fourth Proportional to 12,976.32, 19,436.76 and 5,571.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,976.32 : 19,436.76 = 5,571.12 : x
2. Step 2: Convert to fraction form
   12,976.32/19,436.76 = 5,571.12/x
3. Step 3: Cross multiply
   12,976.32x = 19,436.76 × 5,571.12
4. Step 4: Simplify right side
   12,976.32x = 108,284,522.37
5. Step 5: Solve for x
   x = 108,284,522.37/12,976.32
6. Step 6: Final answer
   x = 8,344.78