Finding the Fourth Proportional to 12,084.47, 18,129.37 and 4,968.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,084.47 : 18,129.37 = 4,968.69 : x
2. Step 2: Convert to fraction form
   12,084.47/18,129.37 = 4,968.69/x
3. Step 3: Cross multiply
   12,084.47x = 18,129.37 × 4,968.69
4. Step 4: Simplify right side
   12,084.47x = 90,079,128.78
5. Step 5: Solve for x
   x = 90,079,128.78/12,084.47
6. Step 6: Final answer
   x = 7,454.12