Finding the Fourth Proportional to 7,151.37, 9,863.32 and 4,315.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,151.37 : 9,863.32 = 4,315.78 : x
2. Step 2: Convert to fraction form
   7,151.37/9,863.32 = 4,315.78/x
3. Step 3: Cross multiply
   7,151.37x = 9,863.32 × 4,315.78
4. Step 4: Simplify right side
   7,151.37x = 42,567,919.19
5. Step 5: Solve for x
   x = 42,567,919.19/7,151.37
6. Step 6: Final answer
   x = 5,952.41