Finding the Fourth Proportional to 9,174.67, 12,663.30 and 5,198.13

Step by Step Solution

1. Step 1: Write the proportion equation
   9,174.67 : 12,663.30 = 5,198.13 : x
2. Step 2: Convert to fraction form
   9,174.67/12,663.30 = 5,198.13/x
3. Step 3: Cross multiply
   9,174.67x = 12,663.30 × 5,198.13
4. Step 4: Simplify right side
   9,174.67x = 65,825,416.31
5. Step 5: Solve for x
   x = 65,825,416.31/9,174.67
6. Step 6: Final answer
   x = 7,174.69