Finding the Fourth Proportional to 7,155.46, 9,869.61 and 4,356.10

Step by Step Solution

1. Step 1: Write the proportion equation
   7,155.46 : 9,869.61 = 4,356.10 : x
2. Step 2: Convert to fraction form
   7,155.46/9,869.61 = 4,356.10/x
3. Step 3: Cross multiply
   7,155.46x = 9,869.61 × 4,356.10
4. Step 4: Simplify right side
   7,155.46x = 42,993,008.12
5. Step 5: Solve for x
   x = 42,993,008.12/7,155.46
6. Step 6: Final answer
   x = 6,008.42