Finding the Fourth Proportional to 5,435.91, 7,499.76 and 3,756.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,435.91 : 7,499.76 = 3,756.72 : x
2. Step 2: Convert to fraction form
   5,435.91/7,499.76 = 3,756.72/x
3. Step 3: Cross multiply
   5,435.91x = 7,499.76 × 3,756.72
4. Step 4: Simplify right side
   5,435.91x = 28,174,498.39
5. Step 5: Solve for x
   x = 28,174,498.39/5,435.91
6. Step 6: Final answer
   x = 5,183.03