Finding the Fourth Proportional to 9,456.47, 14,185.35 and 3,213.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,456.47 : 14,185.35 = 3,213.93 : x
2. Step 2: Convert to fraction form
   9,456.47/14,185.35 = 3,213.93/x
3. Step 3: Cross multiply
   9,456.47x = 14,185.35 × 3,213.93
4. Step 4: Simplify right side
   9,456.47x = 45,590,721.93
5. Step 5: Solve for x
   x = 45,590,721.93/9,456.47
6. Step 6: Final answer
   x = 4,821.12