Finding the Fourth Proportional to 9,338.47, 12,884.32 and 5,559.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,338.47 : 12,884.32 = 5,559.73 : x
2. Step 2: Convert to fraction form
   9,338.47/12,884.32 = 5,559.73/x
3. Step 3: Cross multiply
   9,338.47x = 12,884.32 × 5,559.73
4. Step 4: Simplify right side
   9,338.47x = 71,633,340.43
5. Step 5: Solve for x
   x = 71,633,340.43/9,338.47
6. Step 6: Final answer
   x = 7,670.78