Finding the Fourth Proportional to 9,154.68, 12,636.96 and 5,622.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,154.68 : 12,636.96 = 5,622.72 : x
2. Step 2: Convert to fraction form
   9,154.68/12,636.96 = 5,622.72/x
3. Step 3: Cross multiply
   9,154.68x = 12,636.96 × 5,622.72
4. Step 4: Simplify right side
   9,154.68x = 71,054,087.73
5. Step 5: Solve for x
   x = 71,054,087.73/9,154.68
6. Step 6: Final answer
   x = 7,761.50