Finding the Fourth Proportional to 9,870.40, 14,796.16 and 3,628.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,870.40 : 14,796.16 = 3,628.96 : x
2. Step 2: Convert to fraction form
   9,870.40/14,796.16 = 3,628.96/x
3. Step 3: Cross multiply
   9,870.40x = 14,796.16 × 3,628.96
4. Step 4: Simplify right side
   9,870.40x = 53,694,672.79
5. Step 5: Solve for x
   x = 53,694,672.79/9,870.40
6. Step 6: Final answer
   x = 5,439.97