Finding the Fourth Proportional to 7,209.32, 10,815.42 and 3,049.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,209.32 : 10,815.42 = 3,049.31 : x
2. Step 2: Convert to fraction form
   7,209.32/10,815.42 = 3,049.31/x
3. Step 3: Cross multiply
   7,209.32x = 10,815.42 × 3,049.31
4. Step 4: Simplify right side
   7,209.32x = 32,979,499.04
5. Step 5: Solve for x
   x = 32,979,499.04/7,209.32
6. Step 6: Final answer
   x = 4,574.57