Finding the Fourth Proportional to 8,724.96, 12,037.50 and 4,947.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,724.96 : 12,037.50 = 4,947.72 : x
2. Step 2: Convert to fraction form
   8,724.96/12,037.50 = 4,947.72/x
3. Step 3: Cross multiply
   8,724.96x = 12,037.50 × 4,947.72
4. Step 4: Simplify right side
   8,724.96x = 59,558,179.50
5. Step 5: Solve for x
   x = 59,558,179.50/8,724.96
6. Step 6: Final answer
   x = 6,826.18