Finding the Fourth Proportional to 7,196.24, 9,928.85 and 4,212.81

Step by Step Solution

1. Step 1: Write the proportion equation
   7,196.24 : 9,928.85 = 4,212.81 : x
2. Step 2: Convert to fraction form
   7,196.24/9,928.85 = 4,212.81/x
3. Step 3: Cross multiply
   7,196.24x = 9,928.85 × 4,212.81
4. Step 4: Simplify right side
   7,196.24x = 41,828,337.50
5. Step 5: Solve for x
   x = 41,828,337.50/7,196.24
6. Step 6: Final answer
   x = 5,812.52