Finding the Fourth Proportional to 11,002.16, 16,503.78 and 3,603.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,002.16 : 16,503.78 = 3,603.62 : x
2. Step 2: Convert to fraction form
   11,002.16/16,503.78 = 3,603.62/x
3. Step 3: Cross multiply
   11,002.16x = 16,503.78 × 3,603.62
4. Step 4: Simplify right side
   11,002.16x = 59,473,351.68
5. Step 5: Solve for x
   x = 59,473,351.68/11,002.16
6. Step 6: Final answer
   x = 5,405.61