Finding the Fourth Proportional to 20,091.78, 30,137.00 and 7,608.06

Step by Step Solution

1. Step 1: Write the proportion equation
   20,091.78 : 30,137.00 = 7,608.06 : x
2. Step 2: Convert to fraction form
   20,091.78/30,137.00 = 7,608.06/x
3. Step 3: Cross multiply
   20,091.78x = 30,137.00 × 7,608.06
4. Step 4: Simplify right side
   20,091.78x = 229,284,066.18
5. Step 5: Solve for x
   x = 229,284,066.18/20,091.78
6. Step 6: Final answer
   x = 11,411.83