Finding the Fourth Proportional to 8,976.72, 12,387.96 and 4,943.99

Step by Step Solution

1. Step 1: Write the proportion equation
   8,976.72 : 12,387.96 = 4,943.99 : x
2. Step 2: Convert to fraction form
   8,976.72/12,387.96 = 4,943.99/x
3. Step 3: Cross multiply
   8,976.72x = 12,387.96 × 4,943.99
4. Step 4: Simplify right side
   8,976.72x = 61,245,925.55
5. Step 5: Solve for x
   x = 61,245,925.55/8,976.72
6. Step 6: Final answer
   x = 6,822.75