Finding the Fourth Proportional to 12,151.96, 18,229.46 and 4,755.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,151.96 : 18,229.46 = 4,755.47 : x
2. Step 2: Convert to fraction form
   12,151.96/18,229.46 = 4,755.47/x
3. Step 3: Cross multiply
   12,151.96x = 18,229.46 × 4,755.47
4. Step 4: Simplify right side
   12,151.96x = 86,689,570.89
5. Step 5: Solve for x
   x = 86,689,570.89/12,151.96
6. Step 6: Final answer
   x = 7,133.79