Finding the Fourth Proportional to 7,196.81, 9,932.31 and 4,212.47

Step by Step Solution

1. Step 1: Write the proportion equation
   7,196.81 : 9,932.31 = 4,212.47 : x
2. Step 2: Convert to fraction form
   7,196.81/9,932.31 = 4,212.47/x
3. Step 3: Cross multiply
   7,196.81x = 9,932.31 × 4,212.47
4. Step 4: Simplify right side
   7,196.81x = 41,839,557.91
5. Step 5: Solve for x
   x = 41,839,557.91/7,196.81
6. Step 6: Final answer
   x = 5,813.63