Finding the Fourth Proportional to 11,018.30, 16,528.53 and 3,619.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,018.30 : 16,528.53 = 3,619.76 : x
2. Step 2: Convert to fraction form
   11,018.30/16,528.53 = 3,619.76/x
3. Step 3: Cross multiply
   11,018.30x = 16,528.53 × 3,619.76
4. Step 4: Simplify right side
   11,018.30x = 59,829,311.75
5. Step 5: Solve for x
   x = 59,829,311.75/11,018.30
6. Step 6: Final answer
   x = 5,429.99