Finding the Fourth Proportional to 5,359.50, 7,399.35 and 3,499.74

Step by Step Solution

1. Step 1: Write the proportion equation
   5,359.50 : 7,399.35 = 3,499.74 : x
2. Step 2: Convert to fraction form
   5,359.50/7,399.35 = 3,499.74/x
3. Step 3: Cross multiply
   5,359.50x = 7,399.35 × 3,499.74
4. Step 4: Simplify right side
   5,359.50x = 25,895,801.17
5. Step 5: Solve for x
   x = 25,895,801.17/5,359.50
6. Step 6: Final answer
   x = 4,831.76