Finding the Fourth Proportional to 30,843.72, 42,554.16 and 18,091.08

Step by Step Solution

1. Step 1: Write the proportion equation
   30,843.72 : 42,554.16 = 18,091.08 : x
2. Step 2: Convert to fraction form
   30,843.72/42,554.16 = 18,091.08/x
3. Step 3: Cross multiply
   30,843.72x = 42,554.16 × 18,091.08
4. Step 4: Simplify right side
   30,843.72x = 769,850,712.89
5. Step 5: Solve for x
   x = 769,850,712.89/30,843.72
6. Step 6: Final answer
   x = 24,959.72