Finding the Fourth Proportional to 9,722.12, 14,591.82 and 3,890.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,722.12 : 14,591.82 = 3,890.12 : x
2. Step 2: Convert to fraction form
   9,722.12/14,591.82 = 3,890.12/x
3. Step 3: Cross multiply
   9,722.12x = 14,591.82 × 3,890.12
4. Step 4: Simplify right side
   9,722.12x = 56,763,930.82
5. Step 5: Solve for x
   x = 56,763,930.82/9,722.12
6. Step 6: Final answer
   x = 5,838.64