Finding the Fourth Proportional to 20,105.63, 30,153.86 and 7,627.04

Step by Step Solution

1. Step 1: Write the proportion equation
   20,105.63 : 30,153.86 = 7,627.04 : x
2. Step 2: Convert to fraction form
   20,105.63/30,153.86 = 7,627.04/x
3. Step 3: Cross multiply
   20,105.63x = 30,153.86 × 7,627.04
4. Step 4: Simplify right side
   20,105.63x = 229,984,658.24
5. Step 5: Solve for x
   x = 229,984,658.24/20,105.63
6. Step 6: Final answer
   x = 11,438.82