Finding the Fourth Proportional to 9,803.57, 14,708.10 and 3,964.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,803.57 : 14,708.10 = 3,964.28 : x
2. Step 2: Convert to fraction form
   9,803.57/14,708.10 = 3,964.28/x
3. Step 3: Cross multiply
   9,803.57x = 14,708.10 × 3,964.28
4. Step 4: Simplify right side
   9,803.57x = 58,307,026.67
5. Step 5: Solve for x
   x = 58,307,026.67/9,803.57
6. Step 6: Final answer
   x = 5,947.53