Finding the Fourth Proportional to 8,725.22, 12,039.89 and 4,947.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,725.22 : 12,039.89 = 4,947.18 : x
2. Step 2: Convert to fraction form
   8,725.22/12,039.89 = 4,947.18/x
3. Step 3: Cross multiply
   8,725.22x = 12,039.89 × 4,947.18
4. Step 4: Simplify right side
   8,725.22x = 59,563,460.95
5. Step 5: Solve for x
   x = 59,563,460.95/8,725.22
6. Step 6: Final answer
   x = 6,826.59