Finding the Fourth Proportional to 9,722.95, 14,586.71 and 3,149.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,722.95 : 14,586.71 = 3,149.12 : x
2. Step 2: Convert to fraction form
   9,722.95/14,586.71 = 3,149.12/x
3. Step 3: Cross multiply
   9,722.95x = 14,586.71 × 3,149.12
4. Step 4: Simplify right side
   9,722.95x = 45,935,300.20
5. Step 5: Solve for x
   x = 45,935,300.20/9,722.95
6. Step 6: Final answer
   x = 4,724.42