Finding the Fourth Proportional to 7,152.94, 9,870.65 and 3,966.04

Step by Step Solution

1. Step 1: Write the proportion equation
   7,152.94 : 9,870.65 = 3,966.04 : x
2. Step 2: Convert to fraction form
   7,152.94/9,870.65 = 3,966.04/x
3. Step 3: Cross multiply
   7,152.94x = 9,870.65 × 3,966.04
4. Step 4: Simplify right side
   7,152.94x = 39,147,454.33
5. Step 5: Solve for x
   x = 39,147,454.33/7,152.94
6. Step 6: Final answer
   x = 5,472.92