Finding the Fourth Proportional to 7,349.20, 10,141.89 and 3,992.02

Step by Step Solution

1. Step 1: Write the proportion equation
   7,349.20 : 10,141.89 = 3,992.02 : x
2. Step 2: Convert to fraction form
   7,349.20/10,141.89 = 3,992.02/x
3. Step 3: Cross multiply
   7,349.20x = 10,141.89 × 3,992.02
4. Step 4: Simplify right side
   7,349.20x = 40,486,627.72
5. Step 5: Solve for x
   x = 40,486,627.72/7,349.20
6. Step 6: Final answer
   x = 5,508.98