Finding the Fourth Proportional to 9,172.96, 12,658.29 and 5,193.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,172.96 : 12,658.29 = 5,193.82 : x
2. Step 2: Convert to fraction form
   9,172.96/12,658.29 = 5,193.82/x
3. Step 3: Cross multiply
   9,172.96x = 12,658.29 × 5,193.82
4. Step 4: Simplify right side
   9,172.96x = 65,744,879.77
5. Step 5: Solve for x
   x = 65,744,879.77/9,172.96
6. Step 6: Final answer
   x = 7,167.25