Finding the Fourth Proportional to 5,186.10, 7,273.50 and 5,186.10

Step by Step Solution

1. Step 1: Write the proportion equation
   5,186.10 : 7,273.50 = 5,186.10 : x
2. Step 2: Convert to fraction form
   5,186.10/7,273.50 = 5,186.10/x
3. Step 3: Cross multiply
   5,186.10x = 7,273.50 × 5,186.10
4. Step 4: Simplify right side
   5,186.10x = 37,721,098.35
5. Step 5: Solve for x
   x = 37,721,098.35/5,186.10
6. Step 6: Final answer
   x = 7,273.50