Finding the Fourth Proportional to 5,300.80, 7,315.86 and 3,176.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,300.80 : 7,315.86 = 3,176.42 : x
2. Step 2: Convert to fraction form
   5,300.80/7,315.86 = 3,176.42/x
3. Step 3: Cross multiply
   5,300.80x = 7,315.86 × 3,176.42
4. Step 4: Simplify right side
   5,300.80x = 23,238,244.02
5. Step 5: Solve for x
   x = 23,238,244.02/5,300.80
6. Step 6: Final answer
   x = 4,383.91