Finding the Fourth Proportional to 7,196.63, 9,931.34 and 4,212.32

Step by Step Solution

1. Step 1: Write the proportion equation
   7,196.63 : 9,931.34 = 4,212.32 : x
2. Step 2: Convert to fraction form
   7,196.63/9,931.34 = 4,212.32/x
3. Step 3: Cross multiply
   7,196.63x = 9,931.34 × 4,212.32
4. Step 4: Simplify right side
   7,196.63x = 41,833,942.98
5. Step 5: Solve for x
   x = 41,833,942.98/7,196.63
6. Step 6: Final answer
   x = 5,812.99