Finding the Fourth Proportional to 9,987.90, 14,983.59 and 3,412.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,987.90 : 14,983.59 = 3,412.53 : x
2. Step 2: Convert to fraction form
   9,987.90/14,983.59 = 3,412.53/x
3. Step 3: Cross multiply
   9,987.90x = 14,983.59 × 3,412.53
4. Step 4: Simplify right side
   9,987.90x = 51,131,950.38
5. Step 5: Solve for x
   x = 51,131,950.38/9,987.90
6. Step 6: Final answer
   x = 5,119.39