Finding the Fourth Proportional to 9,942.18, 13,719.69 and 5,466.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,942.18 : 13,719.69 = 5,466.53 : x
2. Step 2: Convert to fraction form
   9,942.18/13,719.69 = 5,466.53/x
3. Step 3: Cross multiply
   9,942.18x = 13,719.69 × 5,466.53
4. Step 4: Simplify right side
   9,942.18x = 74,999,028.38
5. Step 5: Solve for x
   x = 74,999,028.38/9,942.18
6. Step 6: Final answer
   x = 7,543.52