Finding the Fourth Proportional to 11,403.82, 17,105.61 and 3,612.63

Step by Step Solution

1. Step 1: Write the proportion equation
   11,403.82 : 17,105.61 = 3,612.63 : x
2. Step 2: Convert to fraction form
   11,403.82/17,105.61 = 3,612.63/x
3. Step 3: Cross multiply
   11,403.82x = 17,105.61 × 3,612.63
4. Step 4: Simplify right side
   11,403.82x = 61,796,239.85
5. Step 5: Solve for x
   x = 61,796,239.85/11,403.82
6. Step 6: Final answer
   x = 5,418.91