Finding the Fourth Proportional to 7,047.87, 9,725.96 and 3,861.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,047.87 : 9,725.96 = 3,861.15 : x
2. Step 2: Convert to fraction form
   7,047.87/9,725.96 = 3,861.15/x
3. Step 3: Cross multiply
   7,047.87x = 9,725.96 × 3,861.15
4. Step 4: Simplify right side
   7,047.87x = 37,553,322.52
5. Step 5: Solve for x
   x = 37,553,322.52/7,047.87
6. Step 6: Final answer
   x = 5,328.32