Finding the Fourth Proportional to 20,100.98, 30,147.34 and 7,616.70

Step by Step Solution

1. Step 1: Write the proportion equation
   20,100.98 : 30,147.34 = 7,616.70 : x
2. Step 2: Convert to fraction form
   20,100.98/30,147.34 = 7,616.70/x
3. Step 3: Cross multiply
   20,100.98x = 30,147.34 × 7,616.70
4. Step 4: Simplify right side
   20,100.98x = 229,623,244.58
5. Step 5: Solve for x
   x = 229,623,244.58/20,100.98
6. Step 6: Final answer
   x = 11,423.49