Finding the Fourth Proportional to 7,150.20, 9,867.29 and 4,355.70

Step by Step Solution

1. Step 1: Write the proportion equation
   7,150.20 : 9,867.29 = 4,355.70 : x
2. Step 2: Convert to fraction form
   7,150.20/9,867.29 = 4,355.70/x
3. Step 3: Cross multiply
   7,150.20x = 9,867.29 × 4,355.70
4. Step 4: Simplify right side
   7,150.20x = 42,978,933.27
5. Step 5: Solve for x
   x = 42,978,933.27/7,150.20
6. Step 6: Final answer
   x = 6,010.87