Finding the Fourth Proportional to 5,434.79, 7,498.21 and 3,755.59

Step by Step Solution

1. Step 1: Write the proportion equation
   5,434.79 : 7,498.21 = 3,755.59 : x
2. Step 2: Convert to fraction form
   5,434.79/7,498.21 = 3,755.59/x
3. Step 3: Cross multiply
   5,434.79x = 7,498.21 × 3,755.59
4. Step 4: Simplify right side
   5,434.79x = 28,160,183.73
5. Step 5: Solve for x
   x = 28,160,183.73/5,434.79
6. Step 6: Final answer
   x = 5,181.47