Finding the Fourth Proportional to 9,947.20, 14,915.38 and 3,706.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,947.20 : 14,915.38 = 3,706.96 : x
2. Step 2: Convert to fraction form
   9,947.20/14,915.38 = 3,706.96/x
3. Step 3: Cross multiply
   9,947.20x = 14,915.38 × 3,706.96
4. Step 4: Simplify right side
   9,947.20x = 55,290,717.04
5. Step 5: Solve for x
   x = 55,290,717.04/9,947.20
6. Step 6: Final answer
   x = 5,558.42