Finding the Fourth Proportional to 7,155.37, 9,868.83 and 4,319.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,155.37 : 9,868.83 = 4,319.78 : x
2. Step 2: Convert to fraction form
   7,155.37/9,868.83 = 4,319.78/x
3. Step 3: Cross multiply
   7,155.37x = 9,868.83 × 4,319.78
4. Step 4: Simplify right side
   7,155.37x = 42,631,174.46
5. Step 5: Solve for x
   x = 42,631,174.46/7,155.37
6. Step 6: Final answer
   x = 5,957.93