Finding the Fourth Proportional to 7,196.34, 9,930.97 and 4,172.05

Step by Step Solution

1. Step 1: Write the proportion equation
   7,196.34 : 9,930.97 = 4,172.05 : x
2. Step 2: Convert to fraction form
   7,196.34/9,930.97 = 4,172.05/x
3. Step 3: Cross multiply
   7,196.34x = 9,930.97 × 4,172.05
4. Step 4: Simplify right side
   7,196.34x = 41,432,503.39
5. Step 5: Solve for x
   x = 41,432,503.39/7,196.34
6. Step 6: Final answer
   x = 5,757.44