Finding the Fourth Proportional to 9,721.30, 14,582.42 and 3,148

Step by Step Solution

1. Step 1: Write the proportion equation
   9,721.30 : 14,582.42 = 3,148 : x
2. Step 2: Convert to fraction form
   9,721.30/14,582.42 = 3,148/x
3. Step 3: Cross multiply
   9,721.30x = 14,582.42 × 3,148
4. Step 4: Simplify right side
   9,721.30x = 45,905,458.16
5. Step 5: Solve for x
   x = 45,905,458.16/9,721.30
6. Step 6: Final answer
   x = 4,722.15