Finding the Fourth Proportional to 12,300.96, 18,451.68 and 4,908.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,300.96 : 18,451.68 = 4,908.96 : x
2. Step 2: Convert to fraction form
   12,300.96/18,451.68 = 4,908.96/x
3. Step 3: Cross multiply
   12,300.96x = 18,451.68 × 4,908.96
4. Step 4: Simplify right side
   12,300.96x = 90,578,559.05
5. Step 5: Solve for x
   x = 90,578,559.05/12,300.96
6. Step 6: Final answer
   x = 7,363.54