Finding the Fourth Proportional to 11,480.23, 17,218.72 and 3,688.03

Step by Step Solution

1. Step 1: Write the proportion equation
   11,480.23 : 17,218.72 = 3,688.03 : x
2. Step 2: Convert to fraction form
   11,480.23/17,218.72 = 3,688.03/x
3. Step 3: Cross multiply
   11,480.23x = 17,218.72 × 3,688.03
4. Step 4: Simplify right side
   11,480.23x = 63,503,155.92
5. Step 5: Solve for x
   x = 63,503,155.92/11,480.23
6. Step 6: Final answer
   x = 5,531.52