Finding the Fourth Proportional to 30,806.72, 46,176.24 and 12,081.12

Step by Step Solution

1. Step 1: Write the proportion equation
   30,806.72 : 46,176.24 = 12,081.12 : x
2. Step 2: Convert to fraction form
   30,806.72/46,176.24 = 12,081.12/x
3. Step 3: Cross multiply
   30,806.72x = 46,176.24 × 12,081.12
4. Step 4: Simplify right side
   30,806.72x = 557,860,696.59
5. Step 5: Solve for x
   x = 557,860,696.59/30,806.72
6. Step 6: Final answer
   x = 18,108.41