Finding the Fourth Proportional to 7,097.72, 10,639.28 and 5,340.83

Step by Step Solution

1. Step 1: Write the proportion equation
   7,097.72 : 10,639.28 = 5,340.83 : x
2. Step 2: Convert to fraction form
   7,097.72/10,639.28 = 5,340.83/x
3. Step 3: Cross multiply
   7,097.72x = 10,639.28 × 5,340.83
4. Step 4: Simplify right side
   7,097.72x = 56,822,505.90
5. Step 5: Solve for x
   x = 56,822,505.90/7,097.72
6. Step 6: Final answer
   x = 8,005.75