Finding the Fourth Proportional to 5,300.43, 7,315.68 and 3,706.65

Step by Step Solution

1. Step 1: Write the proportion equation
   5,300.43 : 7,315.68 = 3,706.65 : x
2. Step 2: Convert to fraction form
   5,300.43/7,315.68 = 3,706.65/x
3. Step 3: Cross multiply
   5,300.43x = 7,315.68 × 3,706.65
4. Step 4: Simplify right side
   5,300.43x = 27,116,665.27
5. Step 5: Solve for x
   x = 27,116,665.27/5,300.43
6. Step 6: Final answer
   x = 5,115.94