Finding the Fourth Proportional to 20,081.62, 30,126.83 and 7,601.75

Step by Step Solution

1. Step 1: Write the proportion equation
   20,081.62 : 30,126.83 = 7,601.75 : x
2. Step 2: Convert to fraction form
   20,081.62/30,126.83 = 7,601.75/x
3. Step 3: Cross multiply
   20,081.62x = 30,126.83 × 7,601.75
4. Step 4: Simplify right side
   20,081.62x = 229,016,441.31
5. Step 5: Solve for x
   x = 229,016,441.31/20,081.62
6. Step 6: Final answer
   x = 11,404.28