Finding the Fourth Proportional to 15,131.89, 20,878.92 and 8,843.05

Step by Step Solution

1. Step 1: Write the proportion equation
   15,131.89 : 20,878.92 = 8,843.05 : x
2. Step 2: Convert to fraction form
   15,131.89/20,878.92 = 8,843.05/x
3. Step 3: Cross multiply
   15,131.89x = 20,878.92 × 8,843.05
4. Step 4: Simplify right side
   15,131.89x = 184,633,333.51
5. Step 5: Solve for x
   x = 184,633,333.51/15,131.89
6. Step 6: Final answer
   x = 12,201.60