Finding the Fourth Proportional to 9,855.34, 14,789.49 and 4,658.38

Step by Step Solution

1. Step 1: Write the proportion equation
   9,855.34 : 14,789.49 = 4,658.38 : x
2. Step 2: Convert to fraction form
   9,855.34/14,789.49 = 4,658.38/x
3. Step 3: Cross multiply
   9,855.34x = 14,789.49 × 4,658.38
4. Step 4: Simplify right side
   9,855.34x = 68,895,064.43
5. Step 5: Solve for x
   x = 68,895,064.43/9,855.34
6. Step 6: Final answer
   x = 6,990.63