Finding the Fourth Proportional to 3,503.27, 5,256.32 and 3,447.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,503.27 : 5,256.32 = 3,447.99 : x
2. Step 2: Convert to fraction form
   3,503.27/5,256.32 = 3,447.99/x
3. Step 3: Cross multiply
   3,503.27x = 5,256.32 × 3,447.99
4. Step 4: Simplify right side
   3,503.27x = 18,123,721.56
5. Step 5: Solve for x
   x = 18,123,721.56/3,503.27
6. Step 6: Final answer
   x = 5,173.38