Finding the Fourth Proportional to 9,885.83, 14,829.28 and 3,311.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,885.83 : 14,829.28 = 3,311.42 : x
2. Step 2: Convert to fraction form
   9,885.83/14,829.28 = 3,311.42/x
3. Step 3: Cross multiply
   9,885.83x = 14,829.28 × 3,311.42
4. Step 4: Simplify right side
   9,885.83x = 49,105,891.95
5. Step 5: Solve for x
   x = 49,105,891.95/9,885.83
6. Step 6: Final answer
   x = 4,967.30