Finding the Fourth Proportional to 6,145.59, 8,482.73 and 5,315.22

Step by Step Solution

1. Step 1: Write the proportion equation
   6,145.59 : 8,482.73 = 5,315.22 : x
2. Step 2: Convert to fraction form
   6,145.59/8,482.73 = 5,315.22/x
3. Step 3: Cross multiply
   6,145.59x = 8,482.73 × 5,315.22
4. Step 4: Simplify right side
   6,145.59x = 45,087,576.15
5. Step 5: Solve for x
   x = 45,087,576.15/6,145.59
6. Step 6: Final answer
   x = 7,336.57