Finding the Fourth Proportional to 9,986.34, 14,979.42 and 3,830.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,986.34 : 14,979.42 = 3,830.34 : x
2. Step 2: Convert to fraction form
   9,986.34/14,979.42 = 3,830.34/x
3. Step 3: Cross multiply
   9,986.34x = 14,979.42 × 3,830.34
4. Step 4: Simplify right side
   9,986.34x = 57,376,271.60
5. Step 5: Solve for x
   x = 57,376,271.60/9,986.34
6. Step 6: Final answer
   x = 5,745.48