Finding the Fourth Proportional to 11,017.61, 16,522.98 and 3,620.30

Step by Step Solution

1. Step 1: Write the proportion equation
   11,017.61 : 16,522.98 = 3,620.30 : x
2. Step 2: Convert to fraction form
   11,017.61/16,522.98 = 3,620.30/x
3. Step 3: Cross multiply
   11,017.61x = 16,522.98 × 3,620.30
4. Step 4: Simplify right side
   11,017.61x = 59,818,061.88
5. Step 5: Solve for x
   x = 59,818,061.88/11,017.61
6. Step 6: Final answer
   x = 5,429.32