Finding the Fourth Proportional to 11,569.80, 17,355.72 and 3,249.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,569.80 : 17,355.72 = 3,249.88 : x
2. Step 2: Convert to fraction form
   11,569.80/17,355.72 = 3,249.88/x
3. Step 3: Cross multiply
   11,569.80x = 17,355.72 × 3,249.88
4. Step 4: Simplify right side
   11,569.80x = 56,404,007.31
5. Step 5: Solve for x
   x = 56,404,007.31/11,569.80
6. Step 6: Final answer
   x = 4,875.11