Finding the Fourth Proportional to 9,520.72, 14,283.90 and 2,947.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,520.72 : 14,283.90 = 2,947.38 : x
2. Step 2: Convert to fraction form
   9,520.72/14,283.90 = 2,947.38/x
3. Step 3: Cross multiply
   9,520.72x = 14,283.90 × 2,947.38
4. Step 4: Simplify right side
   9,520.72x = 42,100,081.18
5. Step 5: Solve for x
   x = 42,100,081.18/9,520.72
6. Step 6: Final answer
   x = 4,421.94