Finding the Fourth Proportional to 9,803.07, 14,707.35 and 3,963.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,803.07 : 14,707.35 = 3,963.78 : x
2. Step 2: Convert to fraction form
   9,803.07/14,707.35 = 3,963.78/x
3. Step 3: Cross multiply
   9,803.07x = 14,707.35 × 3,963.78
4. Step 4: Simplify right side
   9,803.07x = 58,296,699.78
5. Step 5: Solve for x
   x = 58,296,699.78/9,803.07
6. Step 6: Final answer
   x = 5,946.78