Finding the Fourth Proportional to 9,942.24, 13,720.62 and 5,466.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,942.24 : 13,720.62 = 5,466.15 : x
2. Step 2: Convert to fraction form
   9,942.24/13,720.62 = 5,466.15/x
3. Step 3: Cross multiply
   9,942.24x = 13,720.62 × 5,466.15
4. Step 4: Simplify right side
   9,942.24x = 74,998,967.01
5. Step 5: Solve for x
   x = 74,998,967.01/9,942.24
6. Step 6: Final answer
   x = 7,543.47