Finding the Fourth Proportional to 9,868.40, 14,809.05 and 3,628.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,868.40 : 14,809.05 = 3,628.46 : x
2. Step 2: Convert to fraction form
   9,868.40/14,809.05 = 3,628.46/x
3. Step 3: Cross multiply
   9,868.40x = 14,809.05 × 3,628.46
4. Step 4: Simplify right side
   9,868.40x = 53,733,971.52
5. Step 5: Solve for x
   x = 53,733,971.52/9,868.40
6. Step 6: Final answer
   x = 5,445.06