Finding the Fourth Proportional to 9,681.74, 13,365.22 and 7,442.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,681.74 : 13,365.22 = 7,442.83 : x
2. Step 2: Convert to fraction form
   9,681.74/13,365.22 = 7,442.83/x
3. Step 3: Cross multiply
   9,681.74x = 13,365.22 × 7,442.83
4. Step 4: Simplify right side
   9,681.74x = 99,474,993.55
5. Step 5: Solve for x
   x = 99,474,993.55/9,681.74
6. Step 6: Final answer
   x = 10,274.50