Finding the Fourth Proportional to 9,054.39, 12,495.04 and 5,517.62

Step by Step Solution

1. Step 1: Write the proportion equation
   9,054.39 : 12,495.04 = 5,517.62 : x
2. Step 2: Convert to fraction form
   9,054.39/12,495.04 = 5,517.62/x
3. Step 3: Cross multiply
   9,054.39x = 12,495.04 × 5,517.62
4. Step 4: Simplify right side
   9,054.39x = 68,942,882.60
5. Step 5: Solve for x
   x = 68,942,882.60/9,054.39
6. Step 6: Final answer
   x = 7,614.30