Finding the Fourth Proportional to 10,399.46, 15,604.25 and 4,555.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,399.46 : 15,604.25 = 4,555.31 : x
2. Step 2: Convert to fraction form
   10,399.46/15,604.25 = 4,555.31/x
3. Step 3: Cross multiply
   10,399.46x = 15,604.25 × 4,555.31
4. Step 4: Simplify right side
   10,399.46x = 71,082,095.27
5. Step 5: Solve for x
   x = 71,082,095.27/10,399.46
6. Step 6: Final answer
   x = 6,835.18