Finding the Fourth Proportional to 5,434.48, 7,499.61 and 3,196.45

Step by Step Solution

1. Step 1: Write the proportion equation
   5,434.48 : 7,499.61 = 3,196.45 : x
2. Step 2: Convert to fraction form
   5,434.48/7,499.61 = 3,196.45/x
3. Step 3: Cross multiply
   5,434.48x = 7,499.61 × 3,196.45
4. Step 4: Simplify right side
   5,434.48x = 23,972,109.64
5. Step 5: Solve for x
   x = 23,972,109.64/5,434.48
6. Step 6: Final answer
   x = 4,411.12