Finding the Fourth Proportional to 5,288.20, 7,282.95 and 5,173.38

Step by Step Solution

1. Step 1: Write the proportion equation
   5,288.20 : 7,282.95 = 5,173.38 : x
2. Step 2: Convert to fraction form
   5,288.20/7,282.95 = 5,173.38/x
3. Step 3: Cross multiply
   5,288.20x = 7,282.95 × 5,173.38
4. Step 4: Simplify right side
   5,288.20x = 37,677,499.01
5. Step 5: Solve for x
   x = 37,677,499.01/5,288.20
6. Step 6: Final answer
   x = 7,124.82