Finding the Fourth Proportional to 5,085.57, 7,018.68 and 3,097.29

Step by Step Solution

1. Step 1: Write the proportion equation
   5,085.57 : 7,018.68 = 3,097.29 : x
2. Step 2: Convert to fraction form
   5,085.57/7,018.68 = 3,097.29/x
3. Step 3: Cross multiply
   5,085.57x = 7,018.68 × 3,097.29
4. Step 4: Simplify right side
   5,085.57x = 21,738,887.38
5. Step 5: Solve for x
   x = 21,738,887.38/5,085.57
6. Step 6: Final answer
   x = 4,274.62