Finding the Fourth Proportional to 8,976.64, 12,389.82 and 5,827.36

Step by Step Solution

1. Step 1: Write the proportion equation
   8,976.64 : 12,389.82 = 5,827.36 : x
2. Step 2: Convert to fraction form
   8,976.64/12,389.82 = 5,827.36/x
3. Step 3: Cross multiply
   8,976.64x = 12,389.82 × 5,827.36
4. Step 4: Simplify right side
   8,976.64x = 72,199,941.48
5. Step 5: Solve for x
   x = 72,199,941.48/8,976.64
6. Step 6: Final answer
   x = 8,043.09