Finding the Fourth Proportional to 11,503.69, 17,255.57 and 3,498.53

Step by Step Solution

1. Step 1: Write the proportion equation
   11,503.69 : 17,255.57 = 3,498.53 : x
2. Step 2: Convert to fraction form
   11,503.69/17,255.57 = 3,498.53/x
3. Step 3: Cross multiply
   11,503.69x = 17,255.57 × 3,498.53
4. Step 4: Simplify right side
   11,503.69x = 60,369,025.54
5. Step 5: Solve for x
   x = 60,369,025.54/11,503.69
6. Step 6: Final answer
   x = 5,247.80