Finding the Fourth Proportional to 9,942.02, 13,720.15 and 5,466.30

Step by Step Solution

1. Step 1: Write the proportion equation
   9,942.02 : 13,720.15 = 5,466.30 : x
2. Step 2: Convert to fraction form
   9,942.02/13,720.15 = 5,466.30/x
3. Step 3: Cross multiply
   9,942.02x = 13,720.15 × 5,466.30
4. Step 4: Simplify right side
   9,942.02x = 74,998,455.95
5. Step 5: Solve for x
   x = 74,998,455.95/9,942.02
6. Step 6: Final answer
   x = 7,543.58