Finding the Fourth Proportional to 9,718.23, 14,576.43 and 3,148.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,718.23 : 14,576.43 = 3,148.72 : x
2. Step 2: Convert to fraction form
   9,718.23/14,576.43 = 3,148.72/x
3. Step 3: Cross multiply
   9,718.23x = 14,576.43 × 3,148.72
4. Step 4: Simplify right side
   9,718.23x = 45,897,096.67
5. Step 5: Solve for x
   x = 45,897,096.67/9,718.23
6. Step 6: Final answer
   x = 4,722.78