Finding the Fourth Proportional to 9,722.61, 14,586.72 and 3,148.65

Step by Step Solution

1. Step 1: Write the proportion equation
   9,722.61 : 14,586.72 = 3,148.65 : x
2. Step 2: Convert to fraction form
   9,722.61/14,586.72 = 3,148.65/x
3. Step 3: Cross multiply
   9,722.61x = 14,586.72 × 3,148.65
4. Step 4: Simplify right side
   9,722.61x = 45,928,475.93
5. Step 5: Solve for x
   x = 45,928,475.93/9,722.61
6. Step 6: Final answer
   x = 4,723.88