Finding the Fourth Proportional to 9,198.42, 13,792.50 and 5,451.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,198.42 : 13,792.50 = 5,451.72 : x
2. Step 2: Convert to fraction form
   9,198.42/13,792.50 = 5,451.72/x
3. Step 3: Cross multiply
   9,198.42x = 13,792.50 × 5,451.72
4. Step 4: Simplify right side
   9,198.42x = 75,192,848.10
5. Step 5: Solve for x
   x = 75,192,848.10/9,198.42
6. Step 6: Final answer
   x = 8,174.54