Finding the Fourth Proportional to 11,012.58, 16,520.18 and 3,617.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,012.58 : 16,520.18 = 3,617.88 : x
2. Step 2: Convert to fraction form
   11,012.58/16,520.18 = 3,617.88/x
3. Step 3: Cross multiply
   11,012.58x = 16,520.18 × 3,617.88
4. Step 4: Simplify right side
   11,012.58x = 59,768,010.73
5. Step 5: Solve for x
   x = 59,768,010.73/11,012.58
6. Step 6: Final answer
   x = 5,427.25