Finding the Fourth Proportional to 5,435.28, 7,500.72 and 3,077.37

Step by Step Solution

1. Step 1: Write the proportion equation
   5,435.28 : 7,500.72 = 3,077.37 : x
2. Step 2: Convert to fraction form
   5,435.28/7,500.72 = 3,077.37/x
3. Step 3: Cross multiply
   5,435.28x = 7,500.72 × 3,077.37
4. Step 4: Simplify right side
   5,435.28x = 23,082,490.71
5. Step 5: Solve for x
   x = 23,082,490.71/5,435.28
6. Step 6: Final answer
   x = 4,246.79