Finding the Fourth Proportional to 5,340.35, 7,316.15 and 5,140.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,340.35 : 7,316.15 = 5,140.69 : x
2. Step 2: Convert to fraction form
   5,340.35/7,316.15 = 5,140.69/x
3. Step 3: Cross multiply
   5,340.35x = 7,316.15 × 5,140.69
4. Step 4: Simplify right side
   5,340.35x = 37,610,022.56
5. Step 5: Solve for x
   x = 37,610,022.56/5,340.35
6. Step 6: Final answer
   x = 7,042.62