Finding the Fourth Proportional to 9,162.24, 12,645.12 and 5,436.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,162.24 : 12,645.12 = 5,436.48 : x
2. Step 2: Convert to fraction form
   9,162.24/12,645.12 = 5,436.48/x
3. Step 3: Cross multiply
   9,162.24x = 12,645.12 × 5,436.48
4. Step 4: Simplify right side
   9,162.24x = 68,744,941.98
5. Step 5: Solve for x
   x = 68,744,941.98/9,162.24
6. Step 6: Final answer
   x = 7,503.07