Finding the Fourth Proportional to 5,288.82, 7,294.89 and 5,115.06

Step by Step Solution

1. Step 1: Write the proportion equation
   5,288.82 : 7,294.89 = 5,115.06 : x
2. Step 2: Convert to fraction form
   5,288.82/7,294.89 = 5,115.06/x
3. Step 3: Cross multiply
   5,288.82x = 7,294.89 × 5,115.06
4. Step 4: Simplify right side
   5,288.82x = 37,313,800.04
5. Step 5: Solve for x
   x = 37,313,800.04/5,288.82
6. Step 6: Final answer
   x = 7,055.22