Finding the Fourth Proportional to 9,855.56, 14,786.04 and 4,919.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,855.56 : 14,786.04 = 4,919.24 : x
2. Step 2: Convert to fraction form
   9,855.56/14,786.04 = 4,919.24/x
3. Step 3: Cross multiply
   9,855.56x = 14,786.04 × 4,919.24
4. Step 4: Simplify right side
   9,855.56x = 72,736,079.41
5. Step 5: Solve for x
   x = 72,736,079.41/9,855.56
6. Step 6: Final answer
   x = 7,380.21