Finding the Fourth Proportional to 9,338.82, 12,881.90 and 5,559.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,338.82 : 12,881.90 = 5,559.46 : x
2. Step 2: Convert to fraction form
   9,338.82/12,881.90 = 5,559.46/x
3. Step 3: Cross multiply
   9,338.82x = 12,881.90 × 5,559.46
4. Step 4: Simplify right side
   9,338.82x = 71,616,407.77
5. Step 5: Solve for x
   x = 71,616,407.77/9,338.82
6. Step 6: Final answer
   x = 7,668.68