Finding the Fourth Proportional to 9,942.69, 13,720.94 and 5,466.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,942.69 : 13,720.94 = 5,466.90 : x
2. Step 2: Convert to fraction form
   9,942.69/13,720.94 = 5,466.90/x
3. Step 3: Cross multiply
   9,942.69x = 13,720.94 × 5,466.90
4. Step 4: Simplify right side
   9,942.69x = 75,011,006.89
5. Step 5: Solve for x
   x = 75,011,006.89/9,942.69
6. Step 6: Final answer
   x = 7,544.34