Finding the Fourth Proportional to 7,281.42, 10,922.20 and 3,992.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,281.42 : 10,922.20 = 3,992.72 : x
2. Step 2: Convert to fraction form
   7,281.42/10,922.20 = 3,992.72/x
3. Step 3: Cross multiply
   7,281.42x = 10,922.20 × 3,992.72
4. Step 4: Simplify right side
   7,281.42x = 43,609,286.38
5. Step 5: Solve for x
   x = 43,609,286.38/7,281.42
6. Step 6: Final answer
   x = 5,989.12