Finding the Fourth Proportional to 7,196.32, 9,930.36 and 4,211.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,196.32 : 9,930.36 = 4,211.76 : x
2. Step 2: Convert to fraction form
   7,196.32/9,930.36 = 4,211.76/x
3. Step 3: Cross multiply
   7,196.32x = 9,930.36 × 4,211.76
4. Step 4: Simplify right side
   7,196.32x = 41,824,293.03
5. Step 5: Solve for x
   x = 41,824,293.03/7,196.32
6. Step 6: Final answer
   x = 5,811.90