Finding the Fourth Proportional to 8,947.72, 12,348.12 and 4,969.43

Step by Step Solution

1. Step 1: Write the proportion equation
   8,947.72 : 12,348.12 = 4,969.43 : x
2. Step 2: Convert to fraction form
   8,947.72/12,348.12 = 4,969.43/x
3. Step 3: Cross multiply
   8,947.72x = 12,348.12 × 4,969.43
4. Step 4: Simplify right side
   8,947.72x = 61,363,072.47
5. Step 5: Solve for x
   x = 61,363,072.47/8,947.72
6. Step 6: Final answer
   x = 6,857.96