Finding the Fourth Proportional to 9,942.47, 13,720.76 and 5,466.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,942.47 : 13,720.76 = 5,466.18 : x
2. Step 2: Convert to fraction form
   9,942.47/13,720.76 = 5,466.18/x
3. Step 3: Cross multiply
   9,942.47x = 13,720.76 × 5,466.18
4. Step 4: Simplify right side
   9,942.47x = 75,000,116.57
5. Step 5: Solve for x
   x = 75,000,116.57/9,942.47
6. Step 6: Final answer
   x = 7,543.41