Finding the Fourth Proportional to 8,725.98, 13,089.69 and 3,531.18

Step by Step Solution

1. Step 1: Write the proportion equation
   8,725.98 : 13,089.69 = 3,531.18 : x
2. Step 2: Convert to fraction form
   8,725.98/13,089.69 = 3,531.18/x
3. Step 3: Cross multiply
   8,725.98x = 13,089.69 × 3,531.18
4. Step 4: Simplify right side
   8,725.98x = 46,222,051.53
5. Step 5: Solve for x
   x = 46,222,051.53/8,725.98
6. Step 6: Final answer
   x = 5,297.06