Finding the Fourth Proportional to 9,759.98, 14,642.31 and 3,186.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,759.98 : 14,642.31 = 3,186.18 : x
2. Step 2: Convert to fraction form
   9,759.98/14,642.31 = 3,186.18/x
3. Step 3: Cross multiply
   9,759.98x = 14,642.31 × 3,186.18
4. Step 4: Simplify right side
   9,759.98x = 46,653,019.34
5. Step 5: Solve for x
   x = 46,653,019.34/9,759.98
6. Step 6: Final answer
   x = 4,780.03