Finding the Fourth Proportional to 12,897.36, 19,339.56 and 5,976.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,897.36 : 19,339.56 = 5,976.72 : x
2. Step 2: Convert to fraction form
   12,897.36/19,339.56 = 5,976.72/x
3. Step 3: Cross multiply
   12,897.36x = 19,339.56 × 5,976.72
4. Step 4: Simplify right side
   12,897.36x = 115,587,135.04
5. Step 5: Solve for x
   x = 115,587,135.04/12,897.36
6. Step 6: Final answer
   x = 8,962.08